21+ Gambling problem? Call or text 1-800-MY-RESET. Offers are for new players 21+ (18+ where allowed); terms apply.
Best USACasinosTop casinos

Casino glossary A to Z

Our casino glossary defines more than 100 online casino terms in plain English, from RTP and wagering requirements to KYC, MCC 7995 and sweeps coins, each with a dollar example and links to related terms.

Casino glossary A to Z: how each entry works

Casino terms and conditions are full of jargon that decides how much money you can actually withdraw. Each glossary entry starts with a one-line definition, explains how the term works in practice, gives an example in dollars, shows where you're likely to meet it and links to related terms. Entries are short on purpose, and the linked guides go deeper.

For example, the entry for max cashout explains that a cap of 10x a $50 deposit limits what you can withdraw from that bonus to $500, however much you win. The entry for wagering requirement shows that 25x on a $300 deposit-plus-bonus balance means $7,500 in total bets.

Casino terms that affect your money most

If you only learn a handful of terms, make it these. They come up in almost every set of offshore casino terms and decide the real value of a bonus or a win.

Ten casino terms worth knowing
TermPlain-English meaning
RTPThe share of stakes a game is set to pay back over time
House edgeThe casino's built-in margin: 100% minus RTP
VolatilityHow much results swing from session to session
Wagering requirementTotal bets needed before bonus money can be withdrawn
Game weightingHow much each game counts toward wagering
Sticky bonusA bonus that can't be withdrawn, only played with
Withdrawal limitThe most you can cash out per week or month
Pending periodTime a withdrawal waits before processing
KYCIdentity checks before payouts
MCC 7995The card code for gambling that many US banks block

#

1-800-MY-RESETResponsible gamblingAlso: National Problem Gambling Helpline, 1-800-697-3738

1-800-MY-RESET (1-800-697-3738) is the National Problem Gambling Helpline run by the National Council on Problem Gambling. It's free, confidential and open 24/7 by call or text, with chat at ncpgambling.org, for anyone worried about their own gambling or someone else's. Since September 29, 2025, 1-800-GAMBLER no longer reaches the national line. It isn't a crisis line: in a crisis, call or text 988.

21+3Table gamesAlso: 21 plus 3, twenty-one plus three

21+3 is a blackjack side bet that combines your first two cards with the dealer's upcard into a three-card poker hand. It pays on a flush, straight, three of a kind, straight flush or suited three of a kind, with pay tables that vary by game. It's settled before the main hand is played, has nothing to do with reaching 21, and carries a higher edge than the main bet.

6:5 blackjackTable gamesAlso: 3:2 vs 6:5, 3:2 payout, 6:5 payout

6:5 blackjack pays a natural blackjack at 6 to 5 instead of the traditional 3 to 2. On a $10 bet that's $12 instead of $15, and the change adds about 1.4 percentage points to the house edge, more than most other rule changes combined. Check the felt or rules screen: 3 to 2 is the standard, and third-party specs list RTG's Suit 'Em Up Blackjack at 3:2.

9/6Poker gamesAlso: 9-6, nine-six, 8/5

9/6 is video poker shorthand for a pay table's full house and flush payouts per coin: 9 for a full house and 6 for a flush. In Jacks or Better, 9/6 is the full-pay table at about 99.54%. Short-pay versions cut those numbers: 8/5 returns about 97.3% and 7/5 about 96.2%, so $1,000 played costs about $27 on 8/5 against about $4.60 on 9/6.

A

Account verificationGeneralAlso: ID verification, proof of address, document check

Account verification is the process of proving your identity, age and address to a casino, part of KYC. Expect a government photo ID, a proof of address such as a utility bill or bank statement from the last few months, and sometimes a photo of your payment card. Sending documents before your first withdrawal request can save days, and blurry or cropped scans are a common cause of delays.

ACHBankingAlso: eCheck, Automated Clearing House, online bank transfer

ACH, short for Automated Clearing House, is the US network that moves money directly between bank accounts, and an eCheck is an ACH payment made online with your routing and account numbers. State-licensed online casinos commonly offer ACH deposits and withdrawals. Offshore casinos rarely do, because UIGEA restricts payments for unlawful internet gambling and many US banks decline those transfers.

ActionTable gamesAlso: handle, turnover

Action is the total amount you wager, counted bet by bet, and also a bet that's live on the current round. Ten $5 hands of blackjack is $50 of action even if you finish level. Casinos rate players and pay comps on action, and the house edge works on action too, so it's the right number for estimating cost: $50 of action at a 1% edge costs about 50 cents on average.

American rouletteTable gamesAlso: double-zero roulette

American roulette is the double-zero version of the game, with 38 pockets: 1 to 36, 0 and 00. It pays the same odds as the single-zero wheel, so the extra pocket lifts the house edge from 2.70% to about 5.26%. In practice, $1,000 of total bets costs about $52.60 on average, against about $27 on a European wheel, so the single-zero table is the cheaper choice when both are offered.

AMLGeneralAlso: anti-money laundering

AML, short for anti-money laundering, covers the rules and checks that stop criminal money moving through a business. In US land-based casinos, the Bank Secrecy Act requires reports on cash transactions over $10,000. Online, AML is why casinos verify identity, ask about source of funds, apply closed-loop withdrawals and flag deposits that aren't played. Curaçao's regulator adopted an AML policy in January 2025.

AMOESweepstakesAlso: alternative method of entry, mail-in request, no purchase necessary

AMOE, the alternative method of entry, is the no-purchase route to Sweeps Coins that sweepstakes casinos offer so that buying isn't required, typically a mailed request card, a daily login bonus or a social media giveaway. It's central to the legal argument that a site runs a sweepstakes rather than gambling. Mail-in rules are strict, so follow the operator's official sweepstakes rules exactly.

Anjouan licenseLaw and licensing

An Anjouan license is an online gambling license issued on the Autonomous Island of Anjouan, part of the Union of the Comoros, usually cited under the Computer Gaming Licensing Act 007 of 2005. It is a foreign license, not a US state license, so it gives US players no state regulator to complain to and no state-backed protection of balances. Silver Oak is the only partner casino that publishes one: Primrose Media Limited, licensed in Anjouan.

AntePoker gamesAlso: ante bet

An ante is the bet you place before any cards are dealt, your entry fee to the hand. In casino poker games such as Three Card Poker, Caribbean Stud and Ultimate Texas Hold'em, you check your cards after anteing and then fold, giving up the ante, or add a play or raise bet to compete with the dealer. A $10 ante with a raise of twice the ante puts $30 on the table.

Any sevenTable gamesAlso: big red, any 7

Any seven is a one-roll craps proposition bet that the next roll totals 7. Six of the 36 possible dice combinations make 7, so the true odds are 5 to 1, but the bet pays only 4:1. That gap gives it a house edge of about 16.67%, the worst standard bet on a craps table. A $10 any seven bet costs about $1.67 per roll on average.

AutoplaySlotsAlso: auto spin

Autoplay is a slot setting that spins the reels automatically a chosen number of times at the same stake. It changes nothing about the odds, but it speeds play up: 100 autoplay spins at $1 is $100 staked in a few minutes. Set loss and single-win stop limits if the game offers them, and treat autoplay as one of the features most likely to make time and money slip by.

B

Baccarat bankerTable gamesAlso: Banker bet

The Banker is one of the two hands dealt in baccarat, and a Banker bet backs that hand to finish closer to nine than the Player hand. Because the drawing rules favor it slightly, Banker wins are usually paid at even money minus a 5% commission, so a winning $100 bet returns $95 profit. Its house edge of about 1.06% makes it the lowest-cost standard bet on the table.

Bank wireBankingAlso: wire transfer, international wire

A bank wire moves money between banks, and for offshore casinos it's usually an international transfer. It suits larger withdrawals but tends to carry higher minimums, fees from the casino and from sending, receiving or intermediary banks, and longer delivery times than crypto. Your bank can ask about a gambling-related wire, so keep records and expect questions on large amounts.

BankrollGeneralAlso: gambling budget

Your bankroll is the money you've set aside purely for gambling, separate from rent, bills and savings, and once it's gone you stop. A common approach is to split it into sessions and size bets so one session can't wipe it out, for example a $200 bankroll played as four $50 sessions at $0.50 a spin. Managing a bankroll controls how fast you spend; it never changes the house edge.

Basic strategyTable gamesAlso: blackjack strategy chart

Basic strategy is the set of blackjack decisions that loses the least on average for every pairing of your hand and the dealer's upcard: when to hit, stand, double, split or surrender. It's math, not a hunch, and it's printed in charts. Played correctly on good rules it brings the house edge down to roughly half a percent, but it never removes the edge, so blackjack still costs money over time.

Bet behindLive dealerAlso: back betting

Bet behind is a live blackjack option that lets you wager on a seated player's hand without taking a seat yourself. The seated player makes every decision, and your bet wins, loses or pushes with their hand. It lets more people join a full table, but you give up control, and a player who ignores basic strategy raises the cost of your bet.

Bet maxSlotsAlso: max bet, max bet button

Bet max, or max bet, is a slot and video poker button that sets your stake to the highest level the game allows and, on many games, plays the spin straight away. In video poker, the royal flush usually pays 4,000 coins on a five-coin bet against 250 on one coin, which is why max coins matter there. On slots it simply multiplies the cost of each spin, so check the stake before tapping it.

Betting systemGeneralAlso: progression, D'Alembert, Fibonacci, Paroli

A betting system is a rule for changing bet size based on past results, such as Martingale (double after a loss), D'Alembert (add one unit after a loss), Fibonacci (follow the Fibonacci sequence after losses) or Paroli (double after a win). No system changes the house edge, because every bet faces the same odds. Systems only rearrange when you win and lose, and losing-streak bets can grow fast.

BingoSports and specialtyAlso: 75-ball bingo, 90-ball bingo

Bingo is a numbers game where players mark called numbers on cards and win by completing a set pattern first. US halls usually play 75-ball bingo on a 5x5 card, while 90-ball is common elsewhere. Under federal law, bingo is Class II gaming on tribal land, and charitable bingo is regulated by states. Bingo wins of $2,000 or more in 2026 trigger a W-2G.

BitcoinBankingAlso: BTC

Bitcoin (BTC) is the original cryptocurrency, launched in 2009, and the most widely listed deposit and withdrawal method at offshore casinos that take US players. Payments go from your wallet to the casino's address and are confirmed on the blockchain, with a new block about every 10 minutes on average. Transfers generally can't be reversed, and the price can swing sharply while your money sits in it.

BlackjackTable gamesAlso: twenty-one, 21

Blackjack is the casino card game where you try to beat the dealer by finishing closer to 21 without going over, and it's also the name of the best hand: an ace plus a 10-value card as your first two cards. That hand usually pays 3:2, so $15 on a $10 bet, though some tables pay only 6:5. With basic strategy, blackjack has one of the lowest house edges in the casino.

Blockchain confirmationBankingAlso: confirmations

A blockchain confirmation happens when your crypto transaction is recorded in a block, and every block added after it counts as one more. Casinos credit deposits once the number of confirmations they require is reached, so a Bitcoin deposit can sit as pending while the network catches up. Bitcoin adds a block about every 10 minutes on average, which is why a three-confirmation rule can mean roughly half an hour.

Blocking softwareResponsible gamblingAlso: gambling blocker, Gamban, BetBlocker

Blocking software stops your phone or computer from opening gambling sites and apps, adding a barrier once you've decided to stop. Gamban is a paid option, priced at $6.99 a month or $41.99 a year with a 7-day trial, as published on its site, and BetBlocker is another widely used tool. Install it on every device you use, and pair it with self-exclusion for the strongest protection.

Bonus abuseBonusesAlso: irregular play

Bonus abuse is the label a casino puts on play that breaks a bonus's rules or uses an offer in a way its terms forbid, such as betting over the max-bet limit, playing excluded games or opening a second account. When a casino decides it happened, the usual result is voided bonus winnings, and sometimes a closed account. Reading the bonus terms before you play is the only protection, because the casino interprets them.

Bonus balanceBonusesAlso: bonus funds, bonus money

Your bonus balance is the bonus credit in your account, kept apart from your cash balance until wagering is complete. While it's active, rules such as a max bet, excluded games and an expiry date usually apply. Depending on the casino, your cash is used first, as with a non-sticky bonus, or the two are combined, as with a sticky one. If the bonus balance hits zero, the bonus is over.

Bonus codeBonusesAlso: promo code, coupon code

A bonus code, also called a promo code or coupon, is a short word you enter at sign-up or in the cashier to attach a specific offer to your deposit. The code doesn't change the rules; it tells the casino which set of terms applies, including the match, spins, wagering and max cashout. Codes change and expire, so check the casino's current promotions page, and remember offers are 21+ with terms.

Bonus expiryBonusesAlso: bonus expiration, bonus time limit

Bonus expiry is the deadline attached to a bonus, which can apply to claiming it, using it or finishing its wagering. Miss it and the bonus, plus any winnings made with it, is usually removed. A 30x requirement on a $200 bonus means $6,000 in bets, which at $2 a spin is 3,000 spins, so check whether the time limit is realistic before opting in.

Bonus roundSlotsAlso: bonus game, feature

A bonus round is a special feature inside a slot, such as free spins, a pick-and-win screen or a prize wheel, that starts when certain symbols land. It plays out without extra stakes, but its value is already built into the game's RTP, so it isn't money on top. Bonus rounds are where much of a high-volatility slot's return sits, which is why long dry spells between them are normal.

BoxcarsTable gamesAlso: midnight, craps 12

Boxcars is a roll of two sixes, a total of 12. Like snake eyes, only one of 36 combinations makes it, so the one-roll bet usually pays 30:1 against true odds of 35 to 1, a house edge of about 13.89%. On the come-out roll, 12 loses pass line bets and, on most tables, pushes don't pass bets, a rule known as bar 12.

BustTable gamesAlso: break, busting

To bust in blackjack is to go over 21, which loses the hand immediately. A player who busts loses even if the dealer busts later in the same round, and that order of play is a big part of the house edge. Hitting a hard 12 busts on any 10-value card, four of the 13 ranks. The dealer busts by drawing past 21 while following fixed hit-and-stand rules.

Buy featureSlotsAlso: bonus buy, feature buy

A buy feature, also called a bonus buy or feature buy, lets you pay a set multiple of your stake to start a slot's bonus round straight away. At a price of 100x, a $1 stake means $100 for one bonus, and the result can be well below that. It doesn't remove the house edge, and many casinos exclude bonus buys from wagering or ban them while a bonus is active.

C

Card countingTable gamesAlso: Hi-Lo count, high/low count, counting cards

Card counting is a blackjack method of tracking which cards have left a shoe to judge whether the remaining cards favor the player. The best-known system, Hi-Lo, adds one for each 2 to 6 and subtracts one for each ten or ace. It belongs to land-based history and theory: online RNG blackjack reshuffles every hand, so there is nothing to count, and land casinos can refuse play to suspected counters.

Caribbean Stud PokerPoker gamesAlso: Caribbean Stud

Caribbean Stud Poker is a five-card game played against the dealer. You ante, see your five cards, then fold or raise twice the ante. The dealer must hold ace-king or better to qualify; if not, the ante pays 1:1 and the raise pushes. Strong hands earn bonus odds on the raise, and many versions add a progressive side bet. The house edge on the ante is about 5.2%.

Cascading reelsSlotsAlso: avalanche, tumbling reels, cascading wins

With cascading reels, winning symbols disappear after a payout and new ones drop into the gaps, which can form another win from the same paid spin. The chain keeps going until no new win appears, and many games add a growing multiplier along the way. It can feel like bonus spins, but the cascades are part of the game's math and already counted in its listed RTP.

Cash AppBanking

Cash App is a US payment app from Block that sends money between users and lets you buy and sell Bitcoin. That Bitcoin feature is why it comes up for offshore casino deposits: you can buy Bitcoin in the app and send it to the casino's wallet address. Cash App itself isn't a casino payment method at offshore sites, and its own limits, fees and verification rules apply.

Cashable bonusBonusesAlso: withdrawable bonus

A cashable bonus is one where the bonus amount itself becomes withdrawable once you meet the wagering requirement, along with any winnings. It's the opposite of a sticky or phantom bonus, which is removed at cashout. With a $100 cashable bonus and a $350 balance after wagering, you could withdraw the full $350, subject to any max cashout and withdrawal limits in the terms.

CashbackBonusesAlso: cashback bonus, loss rebate

Cashback is a partial refund of losses, worked out as a percentage of a lost deposit or of net losses over a period. At offshore casinos it's often paid as bonus credit with wagering attached, so 25% cashback on a $200 loss is $50 in bonus money, not $50 in cash. Check whether it's cash or bonus, the wagering and any max cashout before counting it as value.

CashierBankingAlso: banking page, cashier page

The cashier is the section of a casino account where you deposit, withdraw, enter bonus codes and see pending transactions. It lists the payment methods actually available to you, with their minimums, maximums and fees, which can differ from marketing pages. Before depositing, check the withdrawal options here too, because some deposit methods, such as prepaid vouchers, can't receive payouts.

Casino Hold'emPoker gamesAlso: Casino Holdem

Casino Hold'em is a table game based on Texas Hold'em and played against the dealer. You ante, get two cards, see a three-card flop, then fold or call with a bet twice the ante. The dealer needs a pair of 4s or better to qualify; if not, the ante pays by a bonus table and the call pushes. The house edge is about 2.2% of the ante. RTG lists a similar game, Caribbean Hold'em.

Cease and desist letterLaw and licensingAlso: C&D letter, cease-and-desist

A cease-and-desist letter is a formal demand from a regulator or attorney general that an operator stop an activity, such as offering online casino games in a state. The Michigan Gaming Control Board, for example, announced letters to 13 unlicensed operators on April 9, 2025, to 15 operators on August 14, 2025 and 33 letters on October 8, 2026. A letter isn't a court ruling, but it's a clear public warning.

ChargebackBankingAlso: card dispute

A chargeback is a card payment reversed by your card issuer after you dispute it, rather than a refund the merchant agrees to. At casinos it covers card deposits only and is meant for unauthorized or undelivered charges, not for gambling losses. Casino terms typically treat a chargeback as grounds to close the account and keep any balance, and crypto deposits generally can't be reversed at all.

Chasing lossesResponsible gamblingAlso: loss chasing

Chasing losses means gambling more, or betting bigger, to win back money you've already lost. It's one of the clearest warning signs of problem gambling, because the house edge doesn't care about your history: after losing $200, a $200 bet faces the same edge as your first one, and losses usually grow. Stopping at a preset limit, and calling 1-800-MY-RESET if it keeps happening, helps.

Check by courierBankingAlso: courier check, paper check

A check by courier is a withdrawal paid as a paper check and delivered by a courier service. It's an older option some offshore casinos offer US players, usually with a fee, a minimum and a long wait, because the check has to be delivered and then clear at your bank. A check drawn on a foreign bank can take weeks to clear and may carry bank fees.

Classic slotSlotsAlso: three-reel slot, fruit machine, 3-reel slot

A classic slot is a simple game modeled on traditional slot machines, usually with three reels, one to five paylines and symbols such as fruit, bars, bells and 7s. Bonus features are few or none, so wins come mostly from lining up symbols. Fruit machine is the British name for the style. Most online games are video slots instead, with five or more reels and bonus features.

Closed-loop policyBankingAlso: closed loop, same-method withdrawal

A closed-loop policy means withdrawals go back to the method you deposited with, up to the amount deposited, before any other method can be used. It's an anti-money laundering measure common in regulated markets. If a method can't take payouts, as with a prepaid voucher, the casino picks an alternative, often a bank transfer or crypto, which may need extra verification.

Cluster paysSlotsAlso: cluster slots, pay anywhere

Cluster pays is a slot payout system where wins come from groups of matching symbols touching each other horizontally or vertically, usually five or more, instead of lines across the reels. Games use larger grids, such as 7x7, and often remove winning clusters so new symbols cascade in. Bigger clusters pay more, but the RTP and volatility still set the long-run cost.

Coin valueSlotsAlso: coin size

Coin value, or coin size, is the dollar amount of each coin you bet in an online slot, such as $0.01, $0.05 or $0.25. The game multiplies it by the coins per line and the number of lines to get your total bet: $0.05 a coin, one coin a line and 25 lines makes a $1.25 spin. It's one of several dials that set the real price of each spin.

Cold walletBankingAlso: hardware wallet, cold storage

A cold wallet keeps crypto keys offline, usually on a hardware device or paper, so online attackers can't reach them. It's the safer place for savings, while a hot wallet handles day-to-day transfers. For casino play, keeping only a set budget in a hot wallet and the rest offline adds security and also puts a natural brake on impulsive deposits.

Column betTable gamesAlso: columns

A column bet is a roulette wager on one of the three vertical columns of 12 numbers on the layout, placed in the 2 to 1 box at the end of the column. It pays 2:1 and loses on zero, just like a dozen bet; only the grouping of numbers differs. Spreading chips across two columns covers 24 numbers but doesn't change the house edge on either bet.

Come betTable games

A come bet is a craps wager made after the point is set that works like a fresh pass line bet, with the next roll as its own come-out. It wins on 7 or 11, loses on 2, 3 or 12, and otherwise moves to the number rolled, which then has to repeat before a 7. It carries the same house edge as the pass line, about 1.41%, and can take an odds bet behind it.

Come-out rollTable gamesAlso: come out

The come-out roll is the first roll of a new craps round. A 7 or 11 wins pass line bets at once, a 2, 3 or 12 loses them, and any other total (4, 5, 6, 8, 9 or 10) becomes the point. After that, the shooter, the player holding the dice, keeps rolling until the point repeats, a win for pass bettors, or a 7 appears, ending the round as a seven out.

CommissionTable gamesAlso: 5% commission

A commission is the percentage the house takes from a winning bet instead of paying it in full, most often 5% on baccarat Banker wins and on pai gow poker wins. It's used where a bet would otherwise favor the player, so it is how the house builds in its edge. A $100 Banker win pays $95 profit, and some no-commission tables change other payouts to make up the difference.

Comp pointsBonusesAlso: comps, comp, loyalty points

Comp points, short for complimentary points, are loyalty points earned on every dollar you wager, win or lose, that can later be swapped for bonus credit or perks. In land-based casinos, comps also mean meals, rooms and slot play for rated players. Online rates usually work out to a fraction of a cent per dollar bet, so comps are a small rebate on play, not a reason to play more.

Cool offResponsible gamblingAlso: cooling-off period, time-out, take a break

A cool-off, or cooling-off period, is a break you choose during which the casino locks your account so you can't deposit or play until the time runs out, often anywhere from 24 hours to several weeks. It sits between a deposit limit and full self-exclusion and suits the moment you want distance without a permanent ban. If a short break isn't enough, self-exclusion and confidential help from 1-800-MY-RESET are the next steps.

Corner betTable gamesAlso: square bet, quad bet

A corner bet is a roulette chip placed where four numbers meet on the grid, such as 17, 18, 20 and 21, covering all four at once. It pays 8:1, so a $5 corner wins $40 plus your stake. On a single-zero wheel it wins about 4 times in 37 spins on average and carries the same 2.70% edge as every other standard bet there.

Craps pass lineTable gamesAlso: pass line, pass bet

The pass line is the basic craps bet that the shooter will win, placed before the come-out roll. It wins on 7 or 11, loses on 2, 3 or 12, and any other number becomes the point, which must be rolled again before a 7. It pays even money with a house edge of about 1.41%, so $500 of pass line action costs about $7 on average.

Crash gameSports and specialtyAlso: Aviator-style game, crash gambling

A crash game is a fast casino game where a multiplier climbs from 1x until it suddenly crashes at a random point. You place a bet, then cash out before the crash to win your stake times the current multiplier; wait too long and you lose it. Rounds last seconds, which makes spending add up quickly, and the RTP set by the game's provider still applies.

CroupierTable gamesAlso: dealer

A croupier is the casino employee who runs a table game: spinning the roulette wheel, dealing baccarat or blackjack, collecting losing bets and paying winners. The word is French and is most used for roulette and baccarat, while blackjack staff are usually just called dealers. In live dealer games the croupier works from a studio on camera, and in RNG games software does the job.

Crypto exchangeBankingAlso: exchange, crypto trading platform

A crypto exchange is a platform where you buy and sell cryptocurrency for dollars, then withdraw it to a wallet address. US exchanges register with FinCEN as money services businesses and run identity checks, so expect KYC before you can buy. Some exchanges restrict transfers to gambling sites, so read their terms, and compare trading fees, spreads and withdrawal fees, which all cut into a deposit.

Crypto walletBankingAlso: hot wallet, wallet app

A crypto wallet is the app or device that holds the keys to your cryptocurrency and lets you send and receive it. A hot wallet is connected to the internet, such as a phone app, and is convenient for casino deposits. When you set one up, you get a 12- or 24-word recovery phrase; write it down offline and never share it, because anyone who has it controls the funds.

Curacao licenseLaw and licensingAlso: Curaçao license, Curaçao Gaming Authority, CGA license

A Curaçao license is permission to run online gambling under the law of Curaçao, now issued directly by the Curaçao Gaming Authority under the National Ordinance on Games of Chance (LOK), in force since December 24, 2024. The reform replaced the old master-license and sublicense system. It's a foreign license, not a US state license, and it doesn't make an offshore casino legal for US players.

Currency conversionBankingAlso: foreign exchange fee, FX fee

Currency conversion happens when money changes from one currency to another, such as dollars to Bitcoin or dollars to euros. Each step can carry a spread or fee, and a US card charged by a merchant abroad may add a foreign transaction fee, often up to 3%. Keeping your casino account in US dollars and checking exchange rates before buying crypto keeps the hidden cost down.

D

Dealer qualifiesPoker gamesAlso: qualifying hand, dealer qualifier

In casino poker games, the dealer qualifies when their hand meets a set minimum, which changes how some bets are paid. The minimum is queen-high in Three Card Poker, ace-king in Caribbean Stud, a pair of 4s in Casino Hold'em and a pair in Ultimate Texas Hold'em. In Three Card Poker, a non-qualifying dealer means the ante pays even money and the play bet pushes. Rules differ by game.

Dealer tipLive dealerAlso: tipping the dealer, toke

A dealer tip is a voluntary payment you send to a live dealer through a tip button in the game, a habit carried over from land-based tables, where tips are called tokes. Tips leave your balance immediately, aren't bets and can't be refunded. They don't change your odds or how the game is dealt, so tip only if you want to, and count it as part of your entertainment budget.

Demo modeGeneralAlso: free play mode, play for fun, demo play

Demo mode lets you play a casino game with play credits that have no cash value, so you can learn the rules, features and bet settings without staking money. Nothing you win can be withdrawn. It's a useful way to see how a slot behaves, but a good run in demo mode says nothing about what will happen with real money, where every spin still faces the house edge.

DenominationSlotsAlso: denom

The denomination is the dollar size of one coin or credit in a slot or video poker game, such as 1¢, 5¢, 25¢ or $1. Every bet is counted in those units, so a five-coin bet on a 25¢ video poker game costs $1.25 a hand. Penny slots are named for a 1¢ denomination, but with many lines and coins a spin can still cost several dollars.

Deposit limitResponsible gamblingAlso: deposit cap

A deposit limit is a cap you set on how much money you can add to a casino account over a day, week or month. Once you reach it, further deposits are refused until the period resets. Set it from your entertainment budget, for example $100 a week, before you start playing. It doesn't change your odds, but it puts a firm ceiling on what gambling can cost you.

Deposit plus bonus wageringBonusesAlso: D+B, D+B wagering

Deposit plus bonus (D+B) wagering means the wagering multiple applies to your deposit and the bonus combined, not just the bonus. With a $100 deposit and a $100 match at 30x, bonus-only wagering is $3,000, but D+B wagering is $6,000. At a 4% slot edge, that's about $240 in expected cost instead of $120, so check which base the terms use.

Deuces WildPoker gamesAlso: Deuces

Deuces Wild is a video poker game where every 2 acts as a wild card, so the lowest paying hand is three of a kind and five of a kind becomes possible. The full-pay version is often quoted at just over 100% return with perfect strategy, but pay tables vary widely. Third-party reviewers list RTG's Deuces Wild at 97% to 99%, so read the pay table before playing.

Don't passTable gamesAlso: don't pass bar, wrong bettor

Don't pass is the craps bet against the shooter. On the come-out roll it wins on 2 or 3, loses on 7 or 11 and pushes on 12. Once a point is set, it wins if a 7 arrives before the point repeats. The house edge is about 1.36%, slightly lower than the pass line's 1.41%, and you can lay odds behind it at no extra edge.

Double after splitTable gamesAlso: DAS

Double after split, or DAS, is a blackjack rule that lets you double down on a hand created by splitting a pair. Split 9s against a dealer 6, draw a 2 on one hand for 11, and DAS lets you double that hand. The rule lowers the house edge by roughly 0.14 percentage points, so look for DAS or double after split allowed in the game's rules.

Double Double BonusPoker gamesAlso: DDB, Double Double Bonus Poker

Double Double Bonus Poker is a video poker game that pays extra for four of a kind, most of all for four aces with a 2, 3 or 4 kicker, typically 2,000 coins on a five-coin bet. To fund those prizes, two pair pays only even money. The common 9/6 version returns about 98.98% with perfect strategy, and results swing more than in Jacks or Better because so much return sits in rare hands.

Double downTable gamesAlso: doubling down, double

To double down in blackjack is to double your original bet after seeing your first two cards, in exchange for exactly one more card. On a $10 hand you add $10, take one card and stand, so a win pays $20 and a loss costs $20. Basic strategy uses it on strong starting totals, such as 11 against a weak dealer upcard, and table rules may limit which totals qualify.

Download casinoGeneralAlso: casino client, downloadable casino

A download casino is one you reach through software installed on your computer instead of a web page. The program stores game graphics locally and connects to the casino's servers for your balance and results. Most offshore casinos now run in the browser, but Silver Oak publishes a Windows client. Download only from the casino's own site, never from a link in an email or an unofficial mirror site.

Dozen betTable gamesAlso: dozens

A dozen bet is a roulette wager on one of three groups of 12 numbers: 1–12, 13–24 or 25–36. It pays 2:1, so $10 on the middle dozen returns $20 profit if the ball lands between 13 and 24. Zero and double zero lose it. On a single-zero wheel it wins 12 times in 37 spins on average and carries the usual 2.70% house edge.

Dual-currency systemSweepstakesAlso: dual-currency model, sweepstakes model, two-currency system

A dual-currency system is the setup sweepstakes casinos use: Gold Coins for play only, and Sweeps Coins that can be redeemed for cash prizes. Operators sell Gold Coin packages and give Sweeps Coins as a bonus, arguing that no purchase buys a chance to win. New York's 2025 law and similar bans in other states target exactly this model when the second currency is redeemable for cash.

Duplicate accountGeneralAlso: multiple accounts, second account

A duplicate account is a second account opened by the same person, or often from the same household, address, device or payment method, at one casino. Terms nearly always allow one account per person, and duplicates are treated as bonus abuse: accounts closed, bonuses voided and winnings withheld. If you've forgotten a login, contact support instead of signing up again.

E

E-walletBankingAlso: eWallet, digital wallet

An e-wallet is an online account that stores money and pays merchants without sharing your card or bank details, such as PayPal, Skrill or Neteller. In the US, PayPal appears at state-licensed online casinos, while offshore casinos that take US players rarely list mainstream e-wallets, and crypto wallets often fill that role instead. Check the casino's cashier for the methods actually offered.

eCOGRAGeneralAlso: eCOGRA seal, Safe and Fair seal

eCOGRA is a London-based testing and certification agency for online gambling, founded in 2003 and known for its Safe and Fair seal. It tests RNGs, audits payout percentages and reviews operator practices for the casinos and suppliers that hire it. A genuine seal should link to a certificate on eCOGRA's own site; a logo with no verifiable link proves nothing.

Edge sortingTable games

Edge sorting is an advantage technique where a player spots tiny differences in the printed pattern on the backs of cards and arranges for key cards to be turned so they can be recognized later. It became famous through baccarat cases in which courts in New Jersey and England ruled against the player. It doesn't apply online, where RNG games use virtual cards and live studios control their own decks.

En prisonTable gamesAlso: in prison rule

En prison is a French roulette rule for even-money bets such as red, black, odd or even. When the ball lands on zero, your bet isn't lost straight away; it's held, or imprisoned, for the next spin. If that spin wins, you get the stake back without profit, and if it loses, the bet is gone. The rule cuts the house edge on even-money bets to about 1.35%.

ERC20BankingAlso: ERC-20

ERC20 is the token standard on the Ethereum blockchain, used by USDT, USDC and many other tokens. An ERC20 address starts with 0x, the same format as an ether address. Every ERC20 transfer pays a gas fee in ETH, so you need some ether in your wallet even when sending stablecoins. Match the network exactly to what the casino's cashier shows before you send.

EthereumBankingAlso: ETH, ether

Ethereum is a blockchain launched in 2015 whose coin, ether (ETH), is accepted by many crypto casinos. It also carries tokens built to the ERC20 standard, including USDT and USDC. Every Ethereum transaction pays a gas fee in ETH, which rises when the network is busy, so a small deposit can lose a noticeable share to fees. Check which network the casino's address uses.

European rouletteTable gamesAlso: single-zero roulette

European roulette is played on a 37-pocket wheel with numbers 1 to 36 and a single green zero. Payouts match other wheels, but the lone zero gives the house an edge of about 2.70%, roughly half the double-zero game's 5.26%. Third-party reviewers list RTG's European Roulette at 97.3% RTP, which matches that math. Some versions add en prison or la partage rules that lower the edge on even-money bets.

Even moneyTable gamesAlso: 1:1, evens

Even money is a 1:1 payout, where a winning $10 bet returns $10 profit plus your stake. Roulette's red, black, odd and even, the craps pass line and baccarat's Player bet all pay even money. In blackjack, even money is also an offer made when you hold blackjack and the dealer shows an ace: taking it pays 1:1 at once, which works out the same as buying insurance.

Expanding wildSlotsAlso: expanding wilds

An expanding wild is a wild that grows to cover its entire reel when it lands, turning one symbol into a full column of wilds. That can complete wins on several lines at once, and some games add a respin while the expanded reel stays in place. Like every feature, the extra wins are part of the slot's published RTP, not a bonus on top of it.

Expected valueGeneralAlso: EV

Expected value (EV) is the average result of a bet if it were repeated many times, worked out as each outcome times its probability. A $10 bet on red in single-zero roulette has an EV of about minus 27 cents. Players use EV to compare bets and bonuses: a $100 bonus with $3,000 of wagering at a 4% edge has an EV of about minus $20 before any max cashout.

F

Field betTable gamesAlso: the field

The field is a one-roll craps bet that the next roll will be 2, 3, 4, 9, 10, 11 or 12. Most of those pay even money, while 2 and 12 pay extra, often 2:1 on both or 2:1 on one and 3:1 on the other. It looks like it covers a lot, but 5, 6, 7 and 8 are the most common totals, and the edge is about 5.56%, or 2.78% when 12 pays 3:1.

Five-number betTable gamesAlso: basket bet, top line

The five-number bet covers 0, 00, 1, 2 and 3 on a double-zero American roulette wheel and pays 6:1. Its house edge of about 7.89% makes it the worst standard bet on the table, so $100 placed there costs about $7.89 on average against $5.26 on any other bet. On single-zero wheels the nearest equivalent is the first four, or basket, bet on 0, 1, 2 and 3, which pays 8:1.

Form 1099Law and licensingAlso: 1099-MISC, 1099

Form 1099 is a family of IRS information returns for income other than wages. For players, the one that comes up is 1099-MISC, which sweepstakes operators may use to report prize redemptions, with reporting thresholds set by the IRS, so check current guidance. Like a W-2G, it's only a reporting form: winnings are taxable income whether or not you receive one.

Free chipBonusesAlso: free chip bonus

A free chip is a fixed amount of casino bonus credit, such as $25 or $100, added to your account without a deposit, usually with a code. It isn't cash: you must meet a wagering requirement on eligible games, and the most you can withdraw is capped, often at $100 to $200. A $50 chip at 40x needs $2,000 in bets before anything becomes withdrawable.

Free playBonusesAlso: free play bonus, promotional credit

Free play is promotional credit you can bet with but not withdraw directly. In US land-based casinos, players' clubs load it onto slot machines, and it usually has to be played through once, with only the winnings kept. Online, the term can mean a time-limited bonus or credit with wagering attached. Either way it comes with conditions, so read them before counting it as value.

Free spinsBonusesAlso: bonus spins

Free spins means two different things. A promotional free spin is a slot spin the casino pays for, at a fixed bet on a named game, with wagering and a cap on any winnings. An in-game free spin is a bonus round a slot triggers itself, played at your current stake. For promotions, 50 spins at $0.20 is $10 of play, and the terms decide how much of any win you can keep.

Full payPoker gamesAlso: full-pay video poker

A full-pay video poker game uses the most generous standard pay table for its variant, so it returns the most to a player using correct strategy. In Jacks or Better that's the 9/6 table, at about 99.54%; the common 8/5 version drops to about 97.3%. Two machines can carry the same name and deal the same cards yet pay differently, so read the pay table first.

G

Gamble featureSlotsAlso: double-up, double or nothing

A gamble feature lets you risk a win you've just landed for a chance to double it, usually by guessing the color or suit of a face-down card; guess wrong and the whole win is gone. Third-party specs list a double-or-nothing option on RTG's Jacks or Better. A fair red-or-black guess adds swings without improving your average result, so it's a choice about risk, not value.

Gambler's fallacyResponsible gamblingAlso: Monte Carlo fallacy, due theory

The gambler's fallacy is the belief that past random results change future ones, such as thinking red is due after eight blacks in a row, or that a slot will pay because it hasn't for a while. Each spin, roll or hand is independent, so the chance of red on the next spin of a single-zero wheel stays 18 in 37 whatever came before. No pattern or system changes that.

Gamblers AnonymousResponsible gamblingAlso: GA, Gam-Anon

Gamblers Anonymous is a fellowship where people share their experience to stop gambling, using a 12-step program with meetings in person and online; find one at gamblersanonymous.org. Membership costs nothing, and the only requirement is a desire to stop gambling. Gam-Anon runs a separate support group for family and friends, and many people use GA alongside counseling or 1-800-MY-RESET.

Gambling ageLaw and licensingAlso: legal gambling age, minimum age

The gambling age is the minimum age set by state law for each form of gambling, and it varies by state and product. State-licensed online casinos require players to be 21 in states such as New Jersey and Michigan, while many states allow lottery play at 18. Offshore casinos set their own minimum in their terms, and sweepstakes sites usually require 18 or 21 depending on the state.

Gambling loss deductionLaw and licensingAlso: loss deduction, deducting gambling losses

The gambling loss deduction lets you deduct wagering losses on your federal return, but only up to your gambling winnings for the year. From tax year 2026, the 2025 tax law reportedly limits the deduction to 90% of losses, still capped at winnings, and an April 2026 proposed IRS rule states the same limit. Keep detailed records of every session, and check IRS guidance or a tax professional.

Gambling winnings taxLaw and licensingAlso: gambling tax, tax on winnings

Gambling winnings are taxable federal income, whether or not you receive a W-2G and whether the casino is state-licensed or offshore. Payers withhold 24% on certain large winnings, such as lottery and sports prizes over $5,000 that meet the 300-times rule, but not on slots, bingo or keno. Many states tax winnings too. Keep a record of wins and losses, and check IRS guidance or a tax professional.

Game showLive dealerAlso: live game show, money wheel

A live game show is a live dealer game built like a TV show, with a host, a big wheel or board and bonus rounds with random multipliers. Players bet on where the wheel stops or which feature triggers. They're lively entertainment, but returns vary from game to game and can be lower than core table games, so check the published RTP in the game's rules first.

Game weightingBonusesAlso: game contribution, contribution rate

Game weighting, or game contribution, is the share of each bet that counts toward a bonus's wagering requirement. Slots usually count 100%, so a $1 spin clears $1. Table games and video poker often count far less or nothing: at 10%, a $1 blackjack hand clears only 10 cents, so $3,000 of wagering would need $30,000 in blackjack bets. Check the weighting table before you pick a game.

GeolocationGeneralAlso: geofencing, location check

Geolocation is the technology a casino uses to check where you are, through GPS, Wi-Fi, IP address or device data. State-licensed online casinos must confirm you're inside the state's borders before you play, as their regulators require. Offshore casinos use IP checks to block restricted countries and states, and their terms often let them void play from a restricted location.

GLIGeneralAlso: Gaming Laboratories International

GLI, Gaming Laboratories International, is a testing lab founded in 1989 and based in Lakewood, New Jersey, whose standards many US state regulators use to certify slot machines, RNGs and online games. A GLI certificate covers a specific game version or system. Third-party sources list GLI among RealTime Gaming's credentials, so look for the actual certificate rather than a mention.

Gold CoinsSweepstakesAlso: GC

Gold Coins are the play-only currency at sweepstakes and social casinos, used for slots and table-style games purely for entertainment. They have no cash value and can't be redeemed for prizes. You get them at sign-up and through daily rewards, or buy them in packages that often come with bonus Sweeps Coins. Keeping Gold Coins worthless is how operators argue that a purchase is separate from any prize.

Gray marketLaw and licensingAlso: gray-market casino

Gray market describes gambling sites that serve a country without a license from it, usually holding a foreign license and operating where local law is unclear or unenforced. Offshore casinos taking US players are often called gray-market, but several state regulators reject that label: Michigan's regulator calls such sites illegal offshore operators. Black market usually means sites with no license anywhere.

GrinderGeneralAlso: grinding

A grinder is a player who makes lots of small bets over long sessions, usually on low-edge games, to stretch a bankroll, clear a bonus's wagering or build comp points. The word also describes a steady, disciplined poker player. At a casino, grinding slows the rate you spend but can't overcome the house edge: 2,000 bets of $1 at a 1% edge still cost about $20 on average.

H

Hard handTable gamesAlso: hard total

A hard hand in blackjack is any hand with no ace, or with an ace that must count as 1 to stay at 21 or under. Hard 16, such as 10-6, is the classic example. With no ace to soften a big card, a hard 12 or more can bust on the next card, which is why basic strategy sometimes stands on a hard total that looks weak.

HardwaysTable gamesAlso: hard way, hard 8, hard 6

A hardway bet is a craps wager that 4, 6, 8 or 10 will be rolled as a pair, such as 4-4 for hard 8, before a 7 or the same total rolled any other way. Hard 4 and hard 10 usually pay 7:1 with an 11.11% edge; hard 6 and hard 8 pay 9:1 with a 9.09% edge. They're popular side action but cost far more than the pass line's 1.41%.

High rollerGeneralAlso: high-stakes player

A high roller is a player who regularly bets and deposits far more than the average customer, and whom casinos court with VIP tiers, bigger matches, higher limits and personal hosts. At offshore casinos the catch is that withdrawal caps rarely grow as fast as the stakes, so a $30,000 win under a $5,000 weekly cap takes six weeks to cash out in full.

HitGeneralAlso: hitting

Hit has two casino meanings. In blackjack, to hit is to take another card, which risks a bust once your hard total reaches 12 or more. In slots, a hit is any winning spin, even one that pays less than your stake, and hit frequency measures how often they happen. Hitting a jackpot simply means winning it, which on a progressive is a long shot.

Hit frequencySlotsAlso: hit rate

Hit frequency is the share of spins, hands or bets that return any win at all, shown as a percentage or as 1 in X. It tells you how often a game pays, not how much, and a hit can be smaller than your stake: a $1 spin that pays $0.40 still counts. That's why hit frequency alone never tells you whether a game is good value; RTP does that job.

Hold and spinSlotsAlso: hold and win, hold and respin

Hold and spin is a slot bonus where coin or bonus symbols lock in place and you get a short set of respins, usually three, to land more. Each new symbol typically resets the respin count. RealTime Gaming calls its version Hold and Win. When the respins run out, the locked values are added up and paid, sometimes with a fixed jackpot for filling the grid.

Hole cardTable gamesAlso: peek, dealer peek, no hole card

The hole card is the dealer's face-down card in blackjack. Under most US rules, when the dealer's upcard is an ace or 10-value card, the dealer peeks at the hole card and ends the hand at once with blackjack, so you lose only your original bet. Under no-hole-card rules, common in European games, the second card comes later, and doubles or splits can be lost to a dealer blackjack.

Hot and cold mythGeneralAlso: hot slot, cold slot, hot table, due to hit

The hot and cold myth is the belief that a slot or table goes through hot streaks when it pays and cold spells when it doesn't, so you can time your play. RNG games have no memory: each spin or hand is independent, and a machine that just paid is no less likely to pay again. Streaks happen by chance and are only visible looking back.

House edgeGeneralAlso: casino edge, house advantage

The house edge is the average percentage of every bet a casino expects to keep over the long run. A 5% edge means about $5 kept for every $100 wagered, whatever happens in a single session. Multiply your total stake by the edge to estimate the cost of play: $1,000 in single-zero roulette bets at 2.70% averages about $27. It's the mirror image of RTP.

I

i-SlotSlotsAlso: i-Slots, interactive slot

An i-Slot is an interactive slot with a storyline that develops as you play, opening new scenes, features or bonuses over many spins. The term comes from Rival Gaming's i-Slots series, which third-party sources say includes titles such as As the Reels Turn and Reel Crime. Progress is usually saved to your account, but the story doesn't change the game's RTP.

iGamingLaw and licensingAlso: online casino gaming, internet gaming

iGaming is the industry term for real-money online casino gaming, such as slots, table games and live dealer games, and sometimes online poker. It's usually kept separate from online sports betting, which far more states allow. Seven states license iGaming: New Jersey, Pennsylvania, Michigan, West Virginia, Delaware, Connecticut and Rhode Island. Maine legalized tribal online casinos in January 2026, but nothing had launched by October 2026.

IGRALaw and licensingAlso: Indian Gaming Regulatory Act

IGRA, the Indian Gaming Regulatory Act, enacted October 17, 1988 (25 U.S.C. § 2701 et seq.), is the federal law governing gaming on tribal land. It sets three classes: Class I social and traditional games, Class II bingo and certain non-banked card games, and Class III casino games and slots, which need a tribal-state compact. It also created the National Indian Gaming Commission.

Illegal Gambling Business ActLaw and licensingAlso: IGBA, 18 U.S.C. § 1955

The Illegal Gambling Business Act (18 U.S.C. § 1955) makes it a federal crime to run all or part of a gambling business that breaks state law, involves five or more people and has operated for more than 30 days or taken $2,000 in a single day. Penalties reach five years in prison, plus forfeiture. It targets operators, and it's one reason state law is the starting point.

Inside betTable games

An inside bet is any roulette wager placed on the numbered grid itself, covering one to six specific numbers: straight-up, split, street, corner, six line and, on double-zero wheels, the five-number bet. Inside bets pay more because they win less often, but on a single-zero wheel each one carries the same 2.70% house edge as the outside bets.

Instant playGeneralAlso: no download casino, browser play

Instant play means playing casino games straight in a web browser, with nothing to download. You open the casino's site on a computer or phone, log in, and games load in the page. Most offshore casinos that take US players work this way, and none of our partner casinos publishes a mobile app, which is why bookmarking the real address matters more than hunting for an app.

InsuranceTable gamesAlso: insurance bet

Insurance in blackjack is a side bet offered when the dealer shows an ace. You stake up to half your original bet that the dealer has blackjack, and it pays 2:1 if they do. On a $20 hand, $10 of insurance wins $20 if the dealer has 21 and is lost otherwise. Despite the name, it doesn't protect your hand, and basic strategy says to decline it.

iTech LabsGeneralAlso: iTechLabs

iTech Labs is an Australia-based testing lab that certifies RNGs, game math and online gambling systems for regulators and operators in many jurisdictions. Its certificates name the games or platform tested and the date. As with any lab seal, a real certificate can be checked against the lab's own records, and an image on a casino page without that link isn't proof of testing.

J

Jacks or BetterPoker gamesAlso: JoB, Draw Poker

Jacks or Better is the classic video poker game: a pair of jacks or higher returns your stake, and bigger hands pay by the pay table up to a royal flush. The full-pay 9/6 version returns about 99.54% with correct strategy, and third-party reviewers list RTG's Jacks or Better at that figure, with a double-or-nothing gamble option. Lower tables such as 8/5 cost noticeably more.

Joker PokerPoker gamesAlso: Joker Wild

Joker Poker is a video poker game dealt from a 53-card deck that includes one joker, which acts as a wild card. Because the joker makes hands easier, the lowest paying hand is usually a pair of kings or better, and five of a kind is possible. Pay tables vary between versions, and third-party sources don't publish an RTP for RTG's Joker Poker, so compare the table before you play.

K

KenoSports and specialtyAlso: online keno

Keno is a lottery-style game where you pick numbers, usually from 1 to 80, and the game draws 20. You win based on how many of your picks, or spots, are drawn and on the pay table for the number of spots you chose. Land-based keno is known for a high house edge compared with table games. Third-party specs list RTG's Keno with a quick-pick option but no published RTP.

Keno spotSports and specialtyAlso: spot, pick

A keno spot is a number you mark on a keno ticket, and the count of spots names the ticket, so six marks make a 6-spot. In standard keno, 20 of 80 numbers are drawn, and each match is a catch. More spots open bigger top prizes, but catching all of them gets much rarer: on a 10-spot, catching all 10 happens about once in 8.9 million games.

KickerPoker gamesAlso: side card

A kicker is the highest side card that isn't part of your made hand, used to break ties between hands of the same rank. A pair of kings with an ace beats a pair of kings with a queen, and the ace is the kicker. It decides many dealer-versus-player hands, and in Double Double Bonus video poker a 2, 3 or 4 kicker with four aces earns the top four-of-a-kind payout.

KYCBankingAlso: know your customer, identity verification

KYC, short for know your customer, is the identity check a casino runs to confirm who you are, that you're old enough and that the payment methods are yours. Expect a photo ID, a recent proof of address and sometimes a card photo or crypto wallet details. At offshore casinos KYC usually happens before the first withdrawal, and an unfinished check is the most common reason a payout stalls.

L

La partageTable gamesAlso: partage rule, half-back rule

La partage is a French roulette rule for even-money bets: when the ball lands on zero, the house takes only half your stake and returns the other half. A $20 bet on red loses $10 on a zero instead of $20. The rule lowers the house edge on even-money bets from 2.70% to about 1.35%, the same as en prison, and it doesn't apply to inside bets.

LeaderboardBonusesAlso: tournament leaderboard

A leaderboard is the live ranking table in a casino tournament or promotion, showing where players stand and what each place wins. Scoring varies: total wagered, net winnings, biggest single win as a multiple of the bet, or points per spin. Leaderboards that rank by amount staked reward playing more and longer, so set a budget first and treat any prize as a bonus, not a target.

Let It RidePoker gamesAlso: Let 'Em Ride

Let It Ride is a poker table game where you place three equal bets and get three cards, with two community cards to come. After seeing your cards, and again after the first community card, you can pull back one bet or let it ride. Your final five-card hand pays on a pair of 10s or better, with no dealer hand to beat. RTG's version is called Let 'Em Ride.

LitecoinBankingAlso: LTC

Litecoin (LTC) is a cryptocurrency launched in 2011 as a faster, lower-fee alternative to Bitcoin, with a new block about every 2.5 minutes on average. Many offshore casinos list it in the cashier for deposits and sometimes withdrawals. Its quicker blocks can mean faster credit, but the casino's own pending period usually decides how soon a withdrawal actually arrives in your wallet.

Live dealerLive dealerAlso: live casino, live dealer games

A live dealer game is a table game run by a real person, dealing real cards or spinning a real wheel, streamed on video while you bet through on-screen buttons. Results come from the physical game, not an RNG. None of our partner casinos shows a live dealer section on its own site, and reviewers' reports conflict, so check the lobby. Expect higher minimum bets than on RNG tables.

Live studioLive dealerAlso: live casino studio

A live studio is the broadcast facility where live dealer games are filmed, with tables, cameras, dealers and staff who manage the stream. Software reads each card or result and turns it into data for your bet screen. Studios serving state-licensed casinos work under approval from the state regulator. For offshore casinos, check the game's information for the studio's name and its license, if any.

Loss limitResponsible gamblingAlso: net loss limit

A loss limit caps how much you can lose over a day, week or month, measured as deposits minus withdrawals or as net losses on bets. Once you reach it, the casino stops further play until the period resets. You set it, and it works best when it matches what you can afford to spend on entertainment, such as $50 a week, rather than serving as a target to play up to.

LotterySports and specialtyAlso: state lottery, iLottery

A lottery is a game of chance where players buy tickets for a drawing or an instant game, with prizes paid from ticket sales. Most US states run lotteries, including multi-state draws such as Powerball and Mega Millions, while a few states, such as Utah, ban gambling outright. Some states sell tickets online, and lottery wins over $5,000 face 24% federal withholding.

M

MartingaleGeneralAlso: doubling system

The Martingale is a betting system where you double your stake after every loss on an even-money bet, hoping a win recovers everything plus one base unit. Starting at $5, seven straight losses mean the eighth bet is $640, with $635 already gone, and table limits can stop you doubling. It wins small amounts often, loses big amounts rarely, and never changes the house edge.

Match bonusBonusesAlso: deposit bonus, deposit match

A match bonus is bonus credit a casino adds in proportion to your deposit, up to a stated maximum: 100% on $50 adds $50, and 200% adds $100. The percentage gets attention, but the wagering rule decides what it's worth, and a large match can come with a max cashout cap. Most match bonuses are slot-focused, with table games excluded or weighted lower, so check the terms.

Max bet ruleBonusesAlso: maximum bet rule, max stake rule

The max bet rule caps how much you can stake per spin or hand while a bonus is active, often $5 or $10, or a percentage of the bonus. Break it even once and the casino can void your bonus winnings, even if the oversized bet lost. It's one of the most common reasons bonus withdrawals are refused, so set your stake below the cap before you start.

Max cashoutBonusesAlso: maximum cashout, max cashout cap

Max cashout is the most a casino lets you withdraw from winnings made with a particular bonus, however large your balance grows. If a free chip has a $100 max cashout and you finish wagering with $480, the casino pays $100 and removes the other $380. Caps are often set as a multiple of the deposit or bonus, such as 10x, so check them before accepting an offer.

Max winSlotsAlso: win cap, maximum win

Max win is the largest payout a slot can award on one spin or feature, stated as a multiple of your total bet, such as 5,000x. At a $1 stake that's $5,000; at $0.20 it's $1,000. Many games end a feature once the cap is hit. At offshore casinos, also compare the max win with the casino's weekly withdrawal limit and any bonus max cashout, which can be far lower.

MCC 7995BankingAlso: merchant category code 7995, gambling MCC

MCC 7995 is the merchant category code card networks assign to gambling transactions, such as betting, casino gaming and lottery purchases. When a casino deposit carries this code, your bank sees it as gambling, and many US issuers decline it, ask for extra checks or treat it as a cash advance with fees. That's a big reason card deposits at offshore casinos often fail and crypto is offered instead.

MegawaysSlotsAlso: Megaways slots

Megaways is a slot mechanic, created by Big Time Gaming and licensed to other studios, where the number of symbols on each reel changes every spin. On a typical six-reel game, each reel shows two to seven symbols, giving up to 117,649 ways to win. Most Megaways slots add cascading reels and high volatility, so long losing runs between big wins are normal.

Minimum depositBankingAlso: min deposit

The minimum deposit is the smallest amount a casino accepts in one payment, such as $10 or $20, and it can vary by method; a bonus may require more. If a welcome match needs a $25 minimum and you deposit $20, you may get no bonus at all. Low minimums suit small budgets, but fees on small crypto or card deposits can eat a large share of the amount.

Minimum withdrawalBankingAlso: minimum cashout

The minimum withdrawal is the smallest amount a casino will pay out in one request, and it often differs by payment method. If the minimum is $50 and your balance is $35, you can't cash out until it grows, which can pull you into extra play. Crypto minimums are often lower than those for bank wire or check, so check the cashier before you deposit.

Mirror siteGeneralAlso: unofficial mirror site, alternative link

A mirror site is a copy of a casino's website at a different address, showing the same games and accounts. Official mirrors are run by the casino, often after a domain is blocked or changed. Unofficial mirror sites copy a casino's name without permission, and some exist to collect logins and deposits. Reach a casino only through an address you've confirmed, never through a link in an unexpected message.

MultiplierSlotsAlso: win multiplier

A multiplier multiplies a payout, so a 3x multiplier turns a $5 win into $15. Slots attach them to wilds, free spins and cascades, and some grow with each win in a feature. The same x appears in bonus terms, where 30x wagering or a 10x max cashout multiplies your bonus or deposit to set a target or a cap, and that version works against you.

Murphy v. NCAALaw and licensingAlso: Murphy v. National Collegiate Athletic Association

Murphy v. NCAA is the Supreme Court decision of May 14, 2018 that struck down PASPA. In a 6-3 ruling written by Justice Alito, the Court held that barring states from authorizing sports betting violated the Constitution's anticommandeering rule, and that no part of the law could survive. The ruling opened the door to state sports betting; it didn't legalize online casinos.

Must-drop jackpotSlotsAlso: must-hit-by jackpot, daily drop jackpot, drop jackpot

A must-drop jackpot is a progressive prize that has to be won before a set time, such as daily, or before the meter reaches a stated cap, such as $1,000. The cap is published, so you can see how close the meter is, but each spin's chance still depends on the game's math and how many others are playing. Read the rules for which bets qualify.

N

NaturalTable games

A natural is a winning total dealt or rolled straight away. In baccarat it's a two-card total of 8 or 9, which ends the hand with no more cards drawn. In craps it's a 7 or 11 on the come-out roll, which wins pass line bets. Blackjack players sometimes call an ace plus a 10-value card a natural too, and it usually pays 3:2.

Near missSlotsAlso: almost win

A near miss is a losing result that looks close to a win, such as two jackpot symbols on the payline and a third just above it. It means nothing: every spin is decided independently by the RNG, so the next spin is no more likely to hit. Near misses can feel like encouragement to keep playing, which makes them worth recognizing rather than chasing.

NeosurfBankingAlso: Neosurf voucher

Neosurf is a prepaid payment voucher: you buy it, get a code and type the code at a merchant's checkout to pay without card or bank details. Some offshore casinos list it as a deposit method, but it's deposit-only, so winnings must come back another way, such as crypto or a bank transfer. Check the casino's withdrawal options and KYC rules before depositing with a voucher.

Network feeBankingAlso: gas fee, miner fee, transaction fee

A network fee is the amount paid to a blockchain's miners or validators to process a crypto transfer; on Ethereum it's called a gas fee. It goes to the network, not the casino, and it rises when the network is busy. A $5 fee on a $50 deposit is 10% gone before you play. Casinos may also charge their own withdrawal fee on top, so check both.

No deposit bonusBonusesAlso: NDB, sign-up bonus without deposit

A no deposit bonus is a small amount of casino credit, a free chip or a batch of spins, added to a new account before you deposit anything. It lets you try a casino's games, but wagering rules and a max cashout cap decide whether any of it reaches your bank, and many casinos require a deposit before the first withdrawal. A $25 chip with a $100 cap is a typical shape.

Non-sticky bonusBonusesAlso: parachute bonus

A non-sticky bonus keeps your deposit and the bonus in separate balances, and you play with your own cash first. Win early, and you can usually withdraw by forfeiting the bonus; lose your cash, and the bonus takes over with its wagering rules. With a $100 deposit and a $100 bonus, a run up to $400 in cash can often be withdrawn before the bonus is ever touched.

O

OddsGeneralAlso: payout odds, odds against

Odds express the chance of an outcome, as a probability (1 in 37) or as odds against (36 to 1), and casinos also use odds to describe what a bet pays. A payout quoted to 1 returns your stake on top, so 35 to 1 on $10 pays $350 plus the $10, while for 1 includes the stake. A single-number roulette bet has true odds of 36 to 1 but pays 35 to 1, and that gap is the house edge.

Odds betTable gamesAlso: taking the odds, laying the odds

An odds bet is an extra craps wager placed behind a pass line or come bet once a point is set, paid at true odds: 2:1 on 4 or 10, 3:2 on 5 or 9 and 6:5 on 6 or 8. It has no house edge, so adding odds lowers the average cost of your combined bet. Casinos cap it as a multiple of the line bet, such as 3x-4x-5x odds.

Offshore casinoLaw and licensingAlso: offshore gambling site

An offshore casino is an online casino run from outside the United States that accepts US players without a license from any US state. It may hold a foreign license from somewhere like Curaçao or Anjouan, or none. Only seven states license real-money online casinos, and offshore sites aren't among them, so there's no state regulator to complain to and no state-backed protection of balances.

Outside betTable gamesAlso: even-money bets

An outside bet is a roulette wager placed in the boxes around the number grid, covering 12 or 18 numbers at once: red or black, odd or even, 1–18 or 19–36, a dozen or a column. These win more often than inside bets and pay 1:1 or 2:1, and the green zero makes all of them lose. On a single-zero wheel the edge is still 2.70%.

P

Pai GowPoker gamesAlso: Pai Gow Poker

Pai Gow is an old Chinese tile game, and the name now usually means Pai Gow Poker, the casino card game built on it. You get seven cards and set a five-card high hand and a two-card low hand, and both must beat the dealer's hands to win. Many hands push, which makes the game slow and steady, and winning bets usually pay even money minus a 5% commission.

Pair PlusPoker gamesAlso: Pairplus

Pair Plus is the Three Card Poker side bet that pays if your three cards make a pair or better, whatever the dealer holds. A common US pay table is 1:1 for a pair, 3:1 for a flush, 6:1 for a straight, 30:1 for three of a kind and 40:1 for a straight flush, which gives a house edge of about 7.28%. Tables paying 4:1 on a flush drop that to about 2.32%.

ParlaySports and specialtyAlso: accumulator, multi

A parlay is a single sports bet that combines two or more selections, all of which must win for the bet to pay. The odds multiply, so a two-leg parlay at -110 per leg pays about 2.64 to 1, but the bookmaker's margin compounds too, and one losing leg sinks the lot. Parlays are popular because the payouts look large, but they usually cost more per dollar than single bets.

PASPALaw and licensingAlso: Professional and Amateur Sports Protection Act

PASPA, the Professional and Amateur Sports Protection Act of 1992, was a federal law that barred most states from authorizing sports betting, leaving Nevada as the main exception. The Supreme Court struck down the whole statute in Murphy v. NCAA on May 14, 2018, which let states legalize sports betting on their own terms. PASPA never covered online casino games.

PaybackGeneralAlso: payback percentage, payout percentage

Payback, or payback percentage, is the share of all money staked on a game that it returns to players on average over a very long run. A 95% payback means about $95 back for every $100 wagered across millions of plays, with $5 kept by the house. The term is common on land-based slot machines; online, the same figure is usually called RTP.

PaylinesSlotsAlso: lines, betlines

A payline is a set path across a slot's reels, and you win only when matching symbols land along it, usually starting from the leftmost reel. Games range from one line on classic slots to 50 or more on video slots, and on many games your total bet equals the line bet times the number of lines. Twenty-five lines at $0.04 is a $1 spin.

Payout speedBankingAlso: withdrawal time, processing time, cashout time

Payout speed is the total time from requesting a withdrawal to having the money, made up of the casino's pending and processing period plus the payment method's own transfer time. Crypto is usually quickest once approved, while bank wires and checks can take much longer. Unfinished KYC, bonus checks and weekends often add days, so judge a casino by its published times and reviewers' reports.

PayPalBanking

PayPal is an e-wallet that lets you pay without sharing card or bank details. Its policies allow gambling payments only to approved operators licensed where they operate, so in the US you'll find it at state-licensed online casinos in states such as New Jersey, Pennsylvania and Michigan, not at offshore casinos. A site claiming PayPal while holding no US state license deserves a closer look.

PaytableSlotsAlso: pay table

A paytable is the screen inside a casino game that lists every winning combination and what it pays, plus the rules for wilds, scatters and features. On slots it explains how wins form and often shows the RTP. On video poker the pay table largely decides the game's return, so it's the first screen to read before you bet a cent.

Pending periodBankingAlso: pending, pending withdrawal

The pending period is the stretch between requesting a withdrawal and the casino approving it, while staff check your identity, bonus play and limits. Nothing has been sent yet. Published pending windows at offshore casinos run from about 48 hours to 10 business days, and the payment method's own transfer time comes after that, so plan around the total, not just the headline.

Perfect PairsTable gamesAlso: Perfect Pairs side bet

Perfect Pairs is a blackjack side bet that pays when your first two cards are a pair. A mixed pair (different colors) often pays 5:1, a colored pair (same color, different suits) 10:1, and a perfect pair (identical cards) 25:1. Third-party reviewers list RTG's Blackjack + Perfect Pairs with an RTP range of 95.9% to 99.59%, and the side bet usually costs more than the main hand.

Person-to-person transferBankingAlso: P2P, money transfer

A person-to-person (P2P) transfer is a payment sent to a named individual through a money transfer service, rather than to the casino as a merchant. Some offshore casinos have used it for deposits and payouts, with fees, ID checks and limits set by the transfer service. Sending money to a private person carries scam risk, so use only methods the casino's own cashier lists.

Place betTable gamesAlso: place 6 and 8

A place bet is a craps wager that a chosen number, 4, 5, 6, 8, 9 or 10, will be rolled before a 7, made at any time without waiting for a point. Payouts are below true odds: 6 and 8 pay 7:6 (1.52% edge), 5 and 9 pay 7:5 (4.00%), and 4 and 10 pay 9:5 (6.67%). That's why players often place the 6 and 8 in $6 units.

PlinkoSports and specialtyAlso: Plinko game

Plinko is a game where a ball drops through rows of pegs and lands in a slot at the bottom with a set multiplier, higher at the edges and lower in the middle. Many versions let you choose a risk level and the number of rows, which changes volatility. Third-party specs list RTG's Fu Long Plinko at 95% RTP with a 1,000x max win and adjustable volatility.

Pooled jackpotSlotsAlso: shared jackpot

A pooled jackpot is a single progressive prize fed by bets from many players across several casinos or games, so the meter grows faster than one site could manage. RealTime Gaming's Aztec's Millions and Jackpot Piñatas are described as pooled this way. A bigger pool means a bigger headline, not better odds on any one spin, and offshore withdrawal caps can stretch the payout.

Problem gamblingResponsible gamblingAlso: gambling disorder, compulsive gambling, gambling addiction

Problem gambling is gambling that harms your finances, relationships, work or health; at its most severe, clinicians diagnose it as gambling disorder. Signs include chasing losses, hiding play, borrowing to gamble and feeling unable to stop. It's treatable. Confidential help is available at no cost from 1-800-MY-RESET (1-800-697-3738), Gamblers Anonymous and state programs, and 988 is there in a crisis.

Progressive jackpotSlotsAlso: progressive

A progressive jackpot is a prize that grows a little with every qualifying bet until someone wins it, then resets to a seed amount and climbs again. RealTime Gaming slots such as Aztec's Millions and Megasaur carry these meters. The headline is real, but the odds are long, part of each bet funds the meter, and at offshore casinos weekly withdrawal caps can spread a big win over months.

Promotional playSweepstakesAlso: promotional sweepstakes

Promotional play is how sweepstakes casinos describe their games: entertainment play with Gold Coins, plus a promotional sweepstakes, open without purchase, in which Sweeps Coins can be redeemed for prizes. The label is a legal argument, not a ruling. States including New York, New Jersey and California now treat dual-currency play as illegal, so the framing gives players no protection there.

Proposition betTable gamesAlso: prop bet, center bet, one-roll bet

Proposition bets are the one-roll and short-term craps wagers in the center of the table, such as any seven, any craps, yo, snake eyes and boxcars. They offer big-looking payouts, from 4:1 up to 30:1, but carry house edges of roughly 11% to 17%, against 1.41% on the pass line. A $5 prop bet on every roll adds up fast, so treat them as an expensive extra.

Provably fairGeneralAlso: provably fair games

Provably fair is a system used mainly at crypto casinos that lets you check a game result wasn't altered after you bet. The casino commits to a hashed server seed before play, you add a client seed, and after the round you can verify the outcome using the revealed seed. It proves the result matched the published method; it doesn't remove the house edge.

Punto bancoTable gamesAlso: Player bet, Punto

Punto banco is the standard casino form of baccarat, where the house banks every hand and cards are drawn by fixed rules. Punto means Player and banco means Banker, and you simply bet on which hand finishes closer to nine, or on a tie. Online and live dealer baccarat almost always use punto banco rules, with the Banker bet carrying the lowest edge at about 1.06% and Player about 1.24%.

PushTable gamesAlso: tie, standoff

A push is a tie: your bet neither wins nor loses and the stake comes back. In blackjack it happens when your total equals the dealer's, so a $25 hand ending 19 against 19 returns $25 and nothing more. Pushes also appear in pai gow poker, on the bar-12 rule for craps don't pass bets, and on baccarat Banker and Player bets when the hand ties.

R

RakeGeneralAlso: poker rake

Rake is the fee a poker room takes from each pot or tournament entry, usually a small percentage up to a cap, because players compete against each other rather than the house. Casino table games such as Three Card Poker or Caribbean Stud have no rake; the house edge does the same job. Online poker for real money is legal only in a few states, through state-licensed sites.

Random jackpotSlotsAlso: mystery jackpot

A random jackpot is a slot jackpot that can be awarded on any spin, with no need to line up particular symbols; the game's RNG decides when it lands. RealTime Gaming uses random jackpots on its Real Series slots and on titles like Aladdin's Wishes, which third-party reviewers say can be won without a maximum bet. Each spin's chance is independent, so a jackpot is never due.

Real Series jackpotSlotsAlso: Real Series

A Real Series jackpot is a random, tiered jackpot that RealTime Gaming attaches to its Real Series slots, which otherwise pay fixed amounts. It can land on any spin, whatever symbols appear, and its meter is fed by one casino or one operator's group of casinos rather than a wide network. Expect smaller meters than wide-area progressives, and check the game's info screen for the tiers.

Reality checkResponsible gamblingAlso: session reminder

A reality check is a pop-up that interrupts play at set intervals to show how long you've been gambling and, often, your net win or loss for the session. Time and money are easy to lose track of on fast games, and the reminder gives you a planned moment to stop. Set it to something short, such as every 30 minutes, if the casino lets you choose.

RealTime GamingGeneralAlso: RTG, Real Time Gaming

RealTime Gaming (RTG) is a casino software provider founded in Atlanta, Georgia, in 1998, which third-party sources say moved operations to Costa Rica in 2007. It's known for Real Series random jackpots and pooled progressives such as Aztec's Millions, and in 2022 it adopted the SpinLogic Gaming brand for US and many international markets. Third-party reviews list RTG at SlotoCash, Silver Oak, Planet 7 and Slot Madness.

RedemptionSweepstakesAlso: prize redemption, Sweeps Coins redemption

Redemption is turning Sweeps Coins into a prize, usually cash by bank transfer or a gift card. Operators typically require identity verification, a minimum number of coins and that each coin has been played through at least once. Redemption times vary and can stretch for days. In states that ban dual-currency sweepstakes, sites block play or redemptions, so check the current rules for your state.

Reload bonusBonusesAlso: reload

A reload bonus is a deposit match for existing players, offered after the welcome package is used up. It usually runs on a schedule, such as a weekend or weekday code, with its own percentage, minimum deposit and wagering rule. A 50% reload on $100 adds $50 in bonus credit, and the terms can be far kinder or far tougher than the welcome offer's.

RetriggerSlotsAlso: extra free spins, re-trigger

A retrigger happens when you land the trigger symbols again during a slot's free spins round, adding more spins to the remaining total, often the same number you started with. Third-party specs list extra free spins on dozens of RTG slots. Some games cap retriggers or total spins, so check the paytable, and remember the chance of a retrigger is already counted in the game's RTP.

Reverse withdrawalBankingAlso: withdrawal reversal, cancel withdrawal

A reverse withdrawal is canceling a payout request while it's still pending, which puts the money back in your casino balance where it can be played again. Some casinos allow it with one click during the pending period. It's one of the most common ways players lose winnings they had already decided to keep, so asking support to disable reversals, where that's offered, is worth considering.

RNGGeneralAlso: random number generator

An RNG, or random number generator, is the software that decides the outcome of every digital casino game, from each slot spin to every card in online blackjack. It produces unpredictable numbers that the game maps to results, so no spin depends on the one before it. Independent labs test RNGs, and regulated states require certification; at offshore casinos, check which lab, if any, is named.

RNG certificationGeneralAlso: RTP certification, game testing, RNG testing

RNG certification is an independent lab's confirmation that a game's random number generator produces unpredictable results and that the game pays at its stated RTP. Labs include GLI, eCOGRA, iTech Labs and BMM, and third-party sources say RTG games are tested by TST. State regulators require certified games; at offshore casinos, look for a named lab and a dated certificate, not just a logo.

Royal flushPoker gamesAlso: royal

A royal flush is the ace, king, queen, jack and ten of one suit, the highest standard poker hand. A random five-card deal makes one about once in 649,740 hands, and in Jacks or Better with correct strategy it arrives roughly once every 40,000 hands. Video poker usually pays 4,000 coins for it on a five-coin bet, against 250 for one coin, which is why max coins matter.

RTPGeneralAlso: return to player, return

RTP, or return to player, is the percentage of all money wagered on a game that it's designed to pay back over a very large number of rounds. A slot listed at 96% returns about $96 per $100 staked in the long run and keeps $4. RTP says nothing about a single session, and the same slot can be offered in several RTP versions, so check the game's info screen.

RTP rangeSlotsAlso: variable RTP, RTP versions

An RTP range means a slot is supplied to casinos in several return versions, for example 96%, 94% and 92%, and each casino chooses which one to run. The game looks and plays the same, but on $1,000 of spins the gap between 96% and 92% is about $40 in average cost. Third-party specs list an RTP range for some RTG slots, so check the info screen at your casino.

S

ScatterSlotsAlso: scatter symbol

A scatter is a slot symbol that pays or triggers a feature wherever it lands, without sitting on a payline. Three or more usually start free spins or a bonus round, and scatter wins are normally multiplied by your total bet rather than the line bet. In RTG's Witchy Wins, for example, three, four or five scatters award 8, 15 or 50 free spins, according to third-party specs.

Scratch cardsSports and specialtyAlso: scratchers, scratch-offs, instant win games

Scratch cards are instant-win games where you reveal hidden symbols and win if they match a prize pattern. US state lotteries sell paper scratchers, and online casinos offer digital versions with a return set by the game; third-party sources list RTG's Treasure Tree as one. Each card's result is fixed when it's printed or bought, so how you scratch makes no difference.

Self-exclusionResponsible gamblingAlso: self-ban

Self-exclusion is a voluntary request to be barred from gambling, at one casino or across every licensed operator in a state program, for a set period or permanently. Once it's in place, the operator should close your account and refuse new sign-ups. At offshore casinos it's handled by each site's support team, so exclude from every account you hold and add blocking software for extra protection.

Self-exclusion listResponsible gamblingAlso: state self-exclusion program, NVSEP

A self-exclusion list is a state-run register of people who've asked to be barred from gambling, which state-licensed casinos and online operators must honor, often for one year, five years or life. The National Voluntary Self-Exclusion Program at nvsep.org offers another route. Offshore casinos aren't part of state lists, so exclude directly with each site and add blocking software.

SessionGeneralAlso: gambling session

A gambling session is one continuous sitting of play, from your first bet to the moment you stop. Planning one means setting a money limit, a time limit and a stop point before you start, for example $40 and 45 minutes. Results inside one session swing widely, and the cost of play adds up with every bet, so ending on schedule matters more than ending on a win.

Session limitResponsible gamblingAlso: time limit, session time limit

A session limit caps how long you can play in one sitting, or how much you can lose or stake in it, after which the casino logs you out or blocks bets. A time limit of 60 minutes, for example, ends play on schedule however the session is going. Some casinos let you set one in account settings; if yours doesn't, a phone timer and a fixed budget do the same job.

ShoeTable gamesAlso: dealing shoe

A shoe is the box that holds several shuffled decks and lets the dealer slide out one card at a time. Blackjack and baccarat tables often use six- or eight-deck shoes, and live dealer studios use them too. Online RNG games have no physical shoe; the software reshuffles its virtual cards for every hand, which is why card counting doesn't work there.

Sic BoSports and specialtyAlso: Big and Small, Tai Sai

Sic Bo is a Chinese dice game played with three dice, where you bet on totals, specific numbers or combinations. The simplest bets, Small (totals 4 to 10) and Big (11 to 17), pay even money and lose on any triple, giving a house edge of about 2.78%. Bets on a specific triple pay much more but carry a far higher edge, so check the pay table before you bet.

Side betTable gamesAlso: side wager

A side bet is an optional extra wager placed alongside the main bet, paying on a specific outcome such as a pair, a poker hand or a suited combination. Popular blackjack side bets include Perfect Pairs and 21+3. Payouts look large, from 5:1 to 100:1 or more, but side bets usually carry a much higher house edge than the main game, so they raise the cost of each round.

Six lineTable gamesAlso: double street, line bet

A six line, also called a double street, is a roulette bet covering two neighboring rows of three numbers, six in total, such as 31 to 36. The chip sits on the outer line where the two rows meet. It pays 5:1, so a $10 six line wins $50 plus your stake. Like other inside bets, it carries a 2.70% edge on a single-zero wheel.

Snake eyesTable gamesAlso: aces, craps 2

Snake eyes is a roll of two ones, a total of 2, the rarest craps total along with 12. Only one of 36 combinations makes it, so a one-roll bet on 2 has true odds of 35 to 1 and usually pays 30:1, a house edge of about 13.89%. On the come-out roll, snake eyes is craps: it loses pass line bets, while don't pass bets win.

Social casinoSweepstakesAlso: free-to-play casino

A social casino is an app or website with slots and table games played only with virtual coins that can't be cashed out or redeemed for prizes. You can often buy more coins, but nothing you win has money value, which separates it from sweepstakes and real-money casinos. New York's 2025 sweepstakes law, for example, doesn't reach games without cash-redeemable rewards.

Soft 17 ruleTable gamesAlso: dealer stands on soft 17, S17, H17

The soft 17 rule says whether the blackjack dealer must stand or draw on a soft 17, such as ace-6. Dealer stands on soft 17 (S17) is better for you; dealer hits soft 17 (H17) adds roughly 0.2 percentage points to the house edge. Third-party specs say RTG's Suit 'Em Up Blackjack has the dealer hit soft 17, so check the rules printed on the table before you sit down.

Soft handTable gamesAlso: soft total

A soft hand in blackjack has an ace counted as 11 without going over 21, such as ace-6, a soft 17. Because the ace can drop to 1, one more card can't bust you, so basic strategy often hits or doubles soft totals that would be stands as hard hands. Whether the dealer hits or stands on soft 17 is a key table rule that shifts the house edge.

Source of fundsBankingAlso: SOF check

Source of funds is where the money you deposit comes from, such as wages, savings or the sale of an asset, and a source of funds check is a casino asking you to prove it, usually with bank statements or pay stubs. It goes beyond ID checks and tends to come with large deposits or withdrawals, holding a payout until you answer. It's tied to anti-money laundering rules.

Source of wealthGeneralAlso: SOW

Source of wealth is how you built your overall wealth, such as salary over many years, a business, an inheritance or investments, as opposed to source of funds, which is where a specific deposit came from. Casinos ask about it mainly for high rollers or very large withdrawals, under anti-money laundering rules, and may want tax returns or business records before paying out.

SpinLogic GamingGeneralAlso: SpinLogic

SpinLogic Gaming is the brand RealTime Gaming adopted in 2022 for its US and many international operations, according to third-party sources; one review site calls it RTG under a different name. The catalog, jackpots and game math are shared, so a SpinLogic logo on a casino usually means RTG titles. Third-party reviews list SpinLogic games at SlotoCash and Silver Oak.

SplitTable gamesAlso: splitting pairs, re-split, resplit

To split in blackjack is to turn a starting pair into two hands by adding a second bet equal to the first, then playing each hand on its own. A $10 pair of 8s becomes two $10 hands, so $20 rides on the round. Rules vary on re-splitting, which makes a third or fourth hand if another pair arrives, on split aces and on doubling after a split.

SportsbookSports and specialtyAlso: sports betting site, book

A sportsbook is the part of a gambling site, or a standalone site, that takes bets on sports events. Since Murphy v. NCAA in 2018, states can legalize sports betting, and most now have, many with licensed mobile apps. Many offshore casinos also run a sportsbook tab with no state license. Casino bonuses usually exclude sports bets, and sports wagers rarely count toward casino wagering.

SqueezeLive dealerAlso: baccarat squeeze

The squeeze is a slow, dramatic reveal of baccarat cards, bending them so the pips appear a little at a time. It started at high-stakes tables in Asia and is now a feature of some live dealer baccarat games. It's pure theater: the cards are already set when dealt, so the squeeze doesn't change the result or the odds, only the pace of the hand.

SSL encryptionGeneralAlso: SSL, TLS, HTTPS

SSL encryption, now technically TLS, scrambles data between your browser and a website so others can't read it, shown by https and a padlock in the address bar. Every casino that handles logins and payments should use it. It protects data in transit only: a padlock says nothing about whether a casino pays out, holds a license or treats players fairly.

StablecoinBankingAlso: USDC

A stablecoin is a cryptocurrency designed to hold a steady value, usually pegged one-to-one to the US dollar. Tether (USDT) and USD Coin (USDC) are the best known. At offshore casinos they let you deposit crypto without Bitcoin's price swings, but many casinos pay withdrawals only in Bitcoin, and you must send stablecoins on the exact network the cashier names, such as ERC20 or TRC20.

Stacked symbolsSlotsAlso: stacked wilds, stacks

Stacked symbols appear in tall blocks on a reel strip, so the same symbol can fill two, three or all positions in a column on one spin. When stacks line up across several reels, one spin can pay on many lines at once. Stacks make a slot's results streakier, with bigger occasional hits and more blank spins, without changing its RTP. Stacked wilds work the same way.

State regulatorLaw and licensingAlso: gaming commission, gaming control board

A state regulator is the agency that licenses and supervises gambling in a state, such as the New Jersey Division of Gaming Enforcement, the Pennsylvania Gaming Control Board or the Michigan Gaming Control Board. Regulators approve operators, test games, handle player complaints and act against illegal sites, including cease-and-desist letters to offshore casinos. Offshore casinos answer to none of them.

State-licensed online casinoLaw and licensingAlso: licensed operator, legal online casino, regulated online casino

A state-licensed online casino is one approved by a state regulator to offer real-money games to players inside that state. Only New Jersey, Pennsylvania, Michigan, West Virginia, Delaware, Connecticut and Rhode Island license them. Licensed sites must verify location and age, use tested games and give players a complaint route to the regulator, protections that offshore casinos don't provide.

Sticky bonusBonusesAlso: phantom bonus, non-cashable bonus

A sticky bonus is casino bonus money you can bet with but never withdraw. It sticks to your balance while you play, and when you cash out, the bonus amount is deducted. With a $100 sticky bonus and a $350 balance after wagering, you'd receive $250. Because the bonus vanishes at withdrawal, it's also called a phantom bonus, and it's worth less than a cashable one.

Sticky wildSlotsAlso: locked wild, sticky wilds

A sticky wild is a wild symbol that stays in place for more than one spin, usually through free spins or a set number of respins, while the other reels keep spinning. Each sticky wild can add to several wins in a row, which is why they often appear in bonus rounds. Third-party specs list sticky wilds on several RTG slots, and the paytable explains how long they stay.

Straight-up betTable gamesAlso: straight bet, single-number bet

A straight-up bet is a roulette wager on a single number, including 0 or 00, and it pays 35:1. A $5 chip on 17 wins $175 plus the $5 back if 17 hits. The true odds are 36 to 1 on a single-zero wheel and 37 to 1 on a double-zero wheel, and that gap between true odds and the payout is exactly where the 2.70% or 5.26% house edge comes from.

Street betTable gamesAlso: row bet

A street bet covers one row of three numbers on the roulette layout, such as 13, 14 and 15, with the chip placed on the outer edge of that row. It pays 11:1, so $10 wins $110 plus your stake. On a single-zero wheel a street wins about 3 times in 37 spins on average, and the house edge is the standard 2.70%. On a double-zero wheel it rises to 5.26%.

SurrenderTable gamesAlso: late surrender, early surrender

Surrender in blackjack lets you fold your hand after the first two cards and take back half your bet, so a $20 hand loses $10 instead of risking all $20. Late surrender, the common version, is offered only after the dealer checks for blackjack. It's correct on a handful of weak hands, such as hard 16 against a dealer 10, and not every game offers it.

Sweeps CoinsSweepstakesAlso: SC, sweepstakes coins

Sweeps Coins are the prize currency at a sweepstakes casino: coins that can be redeemed for a cash prize once you meet the operator's rules, usually including identity checks, a minimum amount and at least one playthrough. You get them as a bonus with Gold Coin purchases, through daily rewards or by mail-in request. A growing list of states bans the model, including New York, New Jersey and California.

Sweepstakes banSweepstakesAlso: sweeps ban, sweepstakes casino ban

A sweepstakes ban is a state law that outlaws dual-currency sweepstakes casinos. Recorded bans include New Jersey (A5447, August 15, 2025), Connecticut and Montana (October 1, 2025), New York (S5935-A, effective December 5, 2025), California (AB 831, January 1, 2026), Tennessee (May 22, 2026), Indiana (HEA 1052, July 1, 2026), Maine (LD 2007, July 2026), Louisiana (Act 182, August 1, 2026) and Oklahoma (November 1, 2026).

Sweepstakes casinoSweepstakesAlso: sweeps casino

A sweepstakes casino is a website with casino-style games that uses two virtual currencies, one for play only and one that can be redeemed for cash prizes, and argues this makes it a promotion rather than gambling. A growing list of states disagrees: bans are recorded in New York, New Jersey, California, Connecticut, Montana, Louisiana, Maine, Indiana, Tennessee and Oklahoma.

T

Texas Hold'em BonusPoker gamesAlso: Texas Holdem Bonus Poker

Texas Hold'em Bonus is a casino poker game where you ante and get two hole cards, then fold or bet twice the ante to see the flop. You can add optional bets on the turn and river before your best five-card hand is compared with the dealer's, with no qualifying hand needed. A separate optional bonus bet pays on your two hole cards, such as a pair of aces.

Theoretical lossGeneralAlso: theo, expected loss, cost per hour

Theoretical loss, or theo, is what a game is expected to cost you on average: total amount staked times the house edge. At $1 a spin and 600 spins an hour on a 96% RTP slot, that's $600 staked and about $24 an hour. Casinos use theo to set comps and VIP perks. Results in any one session will differ, but theo shows the real price of play.

Third card ruleTable gamesAlso: tableau, drawing rules

The third card rule is the fixed table that decides whether baccarat's Player and Banker hands draw a third card. Neither hand draws on a natural 8 or 9. Otherwise the Player hand draws on 0 to 5 and stands on 6 or 7, and the Banker's decision depends on its own total and the Player's third card. You make no decisions; the dealer or software applies the rule.

Three Card PokerPoker gamesAlso: Tri Card Poker, 3 card poker

Three Card Poker is a table game where you and the dealer each get three cards. You ante, then fold or make a play bet equal to the ante, and the dealer needs queen-high to qualify. An ante bonus pays for a straight or better whatever the dealer holds, and the separate Pair Plus bet pays on your own cards. RTG's version is Tri Card Poker, listed at 95.51% RTP by SlotCatalog.

Tie betTable gamesAlso: baccarat tie

A tie bet in baccarat backs the Player and Banker hands to finish with the same total. It usually pays 8:1, and with a house edge of about 14.36% it's far costlier than Banker (about 1.06%) or Player (about 1.24%). Some tables pay 9:1, which cuts the edge to about 4.84%. When a tie occurs, Banker and Player bets push.

TournamentBonusesAlso: slot tournament, casino tournament

A casino tournament is a competition where players race for a prize pool over a set period, ranked on a leaderboard by points, total winnings or biggest multiplier. Some have an entry fee or buy-in, while others are open to anyone playing the chosen games. Prizes are often paid as bonus credit with wagering attached, and tournaments that rank by amount wagered reward spending more.

TRC20BankingAlso: TRC-20, Tron USDT

TRC20 is the token standard on the Tron blockchain, and USDT on TRC20 is a popular way to move stablecoins because network fees are usually low and transfers are quick. A TRC20 address starts with the letter T. If a casino's cashier shows a TRC20 USDT address, send from a wallet or exchange on the same network; an ERC20 transfer to it can be lost.

Tribal compactLaw and licensingAlso: tribal-state compact, gaming compact

A tribal compact is an agreement between a federally recognized tribe and a state that sets the terms for Class III gaming, such as slots and table games, on tribal land. Under IGRA, it takes effect once the Secretary of the Interior publishes approval in the Federal Register. Compacts decide which games tribes offer, how revenue is shared, and in some states whether tribes run sports or online betting.

True oddsGeneralAlso: correct odds, fair odds

True odds are the real odds of an outcome, based on its actual probability. A 7 in craps comes up on 6 of 36 dice combinations, so the true odds against it are 5 to 1. A bet paid at true odds has no house edge, which is why the craps odds bet is so valued; almost every other casino bet pays less than true odds, and that shortfall is the edge.

Turbo spinSlotsAlso: quick spin, fast spin

Turbo spin is a slot setting that shortens the reel animation so each spin finishes sooner. The result is identical, because it's decided the moment you press spin, but you play more spins per hour. Going from 500 to 900 spins an hour at $1 lifts the hourly stake from $500 to $900 and, at a 4% edge, the average cost from $20 to $36.

Two-factor authenticationGeneralAlso: 2FA, two-step verification

Two-factor authentication (2FA) adds a second check when you log in, usually a code from an authenticator app or a text message, on top of your password. It stops someone with a stolen password from getting into your casino account or crypto wallet. App-based codes are generally safer than text messages, which can be intercepted through SIM swaps. Turn it on wherever a casino offers it.

U

UIGEALaw and licensingAlso: Unlawful Internet Gambling Enforcement Act

UIGEA, the Unlawful Internet Gambling Enforcement Act of 2006 (31 U.S.C. §§ 5361–5367), bars gambling businesses from knowingly accepting cards, bank transfers, checks and similar payments tied to unlawful internet gambling. It doesn't make any bet illegal by itself and doesn't make placing a bet a federal crime for the player; legality depends on state and other federal law. It's the background to US card blocks.

Ultimate Texas Hold'emPoker gamesAlso: UTH, Ultimate Hold'em

Ultimate Texas Hold'em is a casino poker game where you post equal ante and blind bets, then choose when to bet: 3x or 4x the ante before the flop, 2x after it, 1x at the river, or fold. The dealer needs a pair to qualify. The blind pays only on a straight or better, and an optional Trips bet pays on three of a kind or better. The edge is about 2.2% of the ante.

USDTBankingAlso: Tether, Tether USDT

USDT, or Tether, is the largest dollar-pegged stablecoin, designed to stay worth $1. It runs on several blockchains, most commonly Ethereum (ERC20) and Tron (TRC20), and casinos that accept it name the network in the cashier. Sending USDT on the wrong network can lose the funds. It avoids Bitcoin's price swings, but some casinos accept it for deposits only, so check the withdrawal options.

V

VarianceGeneralAlso: standard deviation, swings

Variance measures how far results spread around the average, and standard deviation, its square root, puts that spread in dollars. A high-variance game can leave you well up or well down after an hour, even though the house edge sets the same average. That's why short-term results say almost nothing about a game's fairness, and why a bankroll needs room for losing streaks.

VenmoBanking

Venmo is a US peer-to-peer payment app owned by PayPal. Some state-licensed online casinos accept it in states where online casinos are legal, but offshore casinos don't list it as a direct method. Sending Venmo money to a private person as a casino deposit leaves you with little recourse if something goes wrong, because personal payments between friends aren't covered by purchase protection.

Video pokerPoker gamesAlso: draw poker machine

Video poker is a single-player game based on five-card draw: you're dealt five cards, choose which to hold, and replace the rest in one draw. Winning hands pay by a fixed pay table, so the return depends on the variant and the table, and correct holds matter. Third-party reviewers list RTG's Jacks or Better at 99.54% RTP, among the highest returns in an online casino.

Video poker pay tablePoker gamesAlso: video poker paytable

A video poker pay table is the grid on the game screen showing what each winning hand pays per coin, from the lowest qualifying hand up to a royal flush. Because the cards come from a fair 52-card deck, the pay table alone sets the game's return. In Jacks or Better, cutting the full house from 9 to 8 and the flush from 6 to 5 drops the return from about 99.54% to about 97.3%.

VigorishTable gamesAlso: vig, juice

Vigorish, shortened to vig or juice, is the fee or margin a bookmaker or casino builds into a bet. In sports betting it shows up as odds of -110 on both sides, meaning you risk $110 to win $100. In casino games the closest example is the 5% commission on baccarat Banker wins. Either way, it's the reason the house profits even when results split evenly.

VIP programBonusesAlso: loyalty program, VIP club

A VIP program is a tiered loyalty scheme that gives the players who deposit and wager most extra perks, such as cashback, bigger reload matches, higher withdrawal limits and a personal host. Entry comes through published thresholds or invitation. Every perk is funded by the volume of play it encourages, so judge a VIP tier by its cash terms, not its name, and never play more to reach one.

VolatilitySlotsAlso: slot variance

Volatility describes how a game's payouts are spread: frequent small wins at low volatility, rare large ones at high volatility. It doesn't change the average cost, which RTP sets, but it changes the ride. On a $50 budget at $1 a spin, a high-volatility slot can end in 15 minutes or produce one large hit, while a low-volatility one tends to last longer with smaller wins.

VPN banGeneralAlso: VPN rule, proxy ban

A VPN ban is a casino rule that prohibits playing through a virtual private network or proxy that hides your real location. Offshore casinos' terms typically treat it as a serious breach that lets them close the account and keep winnings, and state-licensed casinos block such connections through geolocation. Masking your location breaks these terms and can cost you a withdrawal, so play only where you're allowed.

W

W-2GLaw and licensingAlso: Form W-2G

Form W-2G, Certain Gambling Winnings, is the IRS form a payer files to report winnings above set thresholds, with a copy to you. For payments in 2026, slot, bingo and keno wins of $2,000 or more trigger it, and other wagers need winnings that meet the threshold and are at least 300 times the bet. All gambling winnings are taxable federal income, with or without a form.

WagerGeneralAlso: bet, stake

A wager, also called a bet or stake, is the money you put at risk on a game outcome. In slots it's the total bet per spin; in table games, the chips in each betting area. Casinos measure wagering for bonuses and comps by the total of all wagers, not deposits, so $50 played through ten times at $1 a spin is $500 wagered.

Wager limitResponsible gamblingAlso: bet limit, stake limit

A wager limit caps the total amount you can bet over a period, or the size of a single bet. Because turnover drives the cost of play, it's a direct brake on spending: limiting yourself to $500 of slot bets a week at a 4% edge holds the average cost near $20. It's different from a table maximum or a bonus max bet rule, which the casino sets, not you.

Wager-free bonusBonusesAlso: no-wagering bonus, wager-free spins, no wagering free spins

A wager-free bonus has no wagering requirement, so any winnings it produces are cash you can withdraw straight away, subject to any stated cap. Wager-free spins are the most common form. These offers are rare at offshore casinos and usually smaller than standard bonuses, but 20 wager-free spins can be worth more than a much larger match with 40x wagering.

Wagering requirementBonusesAlso: playthrough, rollover, wagering

A wagering requirement is the total amount you must bet before a casino lets you withdraw bonus money or winnings made with it. A $100 bonus at 30x means $3,000 in bets, and if the multiple applies to deposit plus bonus, it doubles. Every dollar wagered faces the house edge, so 30x on slots at 96% RTP costs about $120 on average, more than the bonus itself.

Walking wildSlotsAlso: moving wild, shifting wild

A walking wild is a wild symbol that moves one reel, usually to the left, after each spin, often triggering a respin at no extra cost as it goes, until it walks off the grid. A wild landing on reel 5 can take part in up to five spins in a row. Third-party specs list walking wilds on a handful of RTG slots, and the paytable shows the direction and any multiplier.

Wallet addressBankingAlso: crypto address, deposit address

A wallet address is the public string of letters and numbers that tells a blockchain where to send crypto. At a casino you meet two: the casino's deposit address in its cashier and your own address, pasted into a withdrawal request. Copy and paste rather than type, check the first and last characters, and match the network, because a transfer to a wrong address usually can't be recovered.

Ways to winSlotsAlso: 243 ways, 1,024 ways, all ways

Ways to win replaces fixed paylines: a ways slot pays for matching symbols on neighboring reels, starting from reel 1, in any row. The headline number is every possible left-to-right route, so a 5x3 grid gives 3x3x3x3x3 = 243 ways and a 5x4 grid gives 1,024. Your stake covers all of them, so a $0.50 spin plays every way at once.

Welcome packageBonusesAlso: welcome bonus, sign-up bonus, new player bonus

A welcome package is a set of bonuses for new players, usually deposit matches spread over the first several deposits, sometimes with free spins. The headline adds them all up, so an offer of $4,000 over four deposits may mean four separate $1,000 matches, each with its own minimum deposit, wagering and max cashout. Offers are 21+ (18+ where allowed) and terms apply, so read each stage.

WGSGeneralAlso: Wager Gaming Technology, Vegas Technology, Wager Gaming

WGS, Wager Gaming Technology, is a casino software provider that third-party sources say began in 1996 as Odds On Gaming and became Vegas Technology after a 2003 merger, before being renamed Wager Gaming. It supplies slots and table games to offshore casinos. Miami Club Casino runs WGS software rather than RTG, so its games, jackpots and RTPs differ from those at RTG casinos.

WhaleGeneralAlso: big player

A whale is casino slang for one of the very few players who bet and lose such large sums that they make up a big share of a casino's revenue. Casinos assign hosts and custom deals to keep them. At offshore casinos the sharpest issue is that deposits can be far larger than weekly payouts, so a whale's winning balance may take many months to withdraw.

Wide-area progressiveSlotsAlso: WAP, networked progressive

A wide-area progressive is a jackpot linked across many casinos, so bets from players at every connected site feed one meter, unlike a local progressive fed by one machine bank, casino or operator group. That's why these jackpots can pass $1 million. Third-party sources describe RTG's Aztec's Millions and Jackpot Piñatas as pooled across casinos. Offshore withdrawal caps can stretch a large payout over months.

WildSlotsAlso: wild symbol, wild card

A wild is a symbol or card that stands in for others to complete a win. In slots it substitutes for regular symbols, usually not scatters, and some wilds also multiply, expand, stick or move. In Deuces Wild video poker, every 2 counts as any card. Wilds make wins more frequent, but their effect is already counted in the game's RTP, so they don't add value on top.

Wire ActLaw and licensingAlso: Federal Wire Act, 18 U.S.C. § 1084

The Wire Act of 1961 (18 U.S.C. § 1084) bars people in the business of betting from knowingly using wire communications to send interstate or foreign bets or betting information. In January 2021 the First Circuit held that it covers only sports betting, though state attorneys general noted the ruling binds the Justice Department only as to the parties in that case. It targets operators, not individual bettors.

Withdrawal feeBankingAlso: cashout fee

A withdrawal fee is a charge for cashing out, either a flat amount per request or a percentage, sometimes waived for the first payout each week or month. On a $100 crypto withdrawal, a $10 fee is 10% of the money. Banks and blockchains may add their own fees, so the full cost can come from three places: the casino, the network and your bank.

Withdrawal limitBankingAlso: weekly withdrawal limit, withdrawal cap

A withdrawal limit is the most a casino will pay you in one request, week or month, however large your balance. Unlike a max cashout, it doesn't remove winnings; it spreads them out. At offshore casinos weekly caps of $2,500 to $5,000 are common, so a $20,000 win under a $2,500 weekly cap takes eight weeks to arrive. VIP tiers sometimes raise the limit.

Y

YoTable gamesAlso: yo-leven, eleven bet

Yo is craps slang for 11, called yo or yo-leven so it isn't misheard as seven. The yo bet is a one-roll wager that the next roll totals 11. Two of 36 combinations make 11 (5-6 and 6-5), so the true odds are 17 to 1, and it usually pays 15:1, a house edge of about 11.11%. On the come-out roll, 11 also wins pass line bets.

Z

ZelleBanking

Zelle is a bank-to-bank payment service built into many US banking apps for sending money to people you know. It isn't a merchant payment method at offshore casinos, so a Zelle deposit means sending money to a private person. Authorized Zelle payments are hard to reverse and have no purchase protection, so treat any such request with caution and use only methods listed in the casino's cashier.

In-depth glossary guides

American rouletteAmerican roulette meaning: the 38-pocket wheel with 0 and 00, its 5.26% house edge, the costly five-number bet and how it compares with European. 21+.Anjouan licenseAnjouan license meaning: what the Comoros island license is, which US-facing casinos cite it, how to read an ALSI number and what it can't protect. 21AnteWhat is ante in casino poker? How the opening bet works in Tri Card Poker, Caribbean Stud and Hold'em, what folding costs, and bonus rules to check. 2AutoplayAutoplay meaning for US slot players: how automatic spins work, the stop settings worth using, what autoplay costs per session and bonus rules. 21+.Baccarat bankerBaccarat banker meaning: what the Banker hand is, the drawing rules, why wins pay 95 cents per dollar, the 1.06% house edge and a worked dollar examplBankrollBankroll meaning: the money you set aside only for gambling, kept apart from bills. How to size it, split it into sessions and see what bonuses do. 21Basic strategyBasic strategy meaning in blackjack: the chart of best plays for each hand vs the dealer upcard, how to read it, its effect on house edge, and limits.Bet maxBet max meaning for US players: what the bet max button does, what it costs per spin, whether jackpots need it, and how it can break bonus bet rules. BlackjackBlackjack meaning for US players: the card game, the two-card 21 hand, what a blackjack pays, RTG versions, house edge in dollars and bonus rules. 21+Blockchain confirmationBlockchain confirmation meaning: the point a crypto transfer is recorded in a block. Why casino deposits wait on confirmations and payouts take longerBonus abuseBonus abuse meaning: the bonus rules offshore casinos enforce, from max bets to second accounts, with a dollar example and how to avoid a flag. 21+.Bonus codeBonus code meaning: a word or string you enter at a casino's cashier to claim a specific offer. How codes work, when to enter them and why they expireBonus roundBonus round meaning for US slot players: free spins, pick games, wheels and respins, how features are paid for, RTG examples and what they cost. 21+.Buy featureBuy feature meaning: how slot bonus buys and bonus bets work, what they cost in dollars, how they clash with max-bet bonus rules, and RTG examples. 21Card countingCard counting meaning in blackjack: the theory of tracking high and low cards in a shoe, running vs true count, and why it fails in online RNG games. Cascading reelsCascading reels meaning: how winning symbols vanish and new ones drop in, chain wins and multipliers, RTG cascade slots and what a spin really costs. CashbackCashback meaning at online casinos: a percentage of losses or lost deposits paid back, usually as bonus credit with wagering. Worked dollar examples. ChargebackChargeback meaning for casino players: how a card dispute reverses a deposit, when it is fair, why crypto can’t be charged back and the risks offshoreCoin valueCoin value meaning explained: how coin size, coins per line and lines set your online slot bet, how wins show in coins and bonus bet caps. 21+.Come betCome bet meaning in craps: how a come bet moves to its own point, what wins and loses, the 1.41% edge, don't come and a worked example. 21+.CommissionCommission meaning in casino games: the 5% taken from baccarat Banker and pai gow wins, how it sets the house edge, craps vig and affiliate commissionComp pointsComp points meaning: loyalty points earned per dollar wagered and swapped for bonus credit. See real conversion rates and why they return well under 1Cool offCool off meaning: a short, self-chosen break that locks your casino account for a set time. How it differs from self-exclusion, and how to ask for oneCraps pass lineCraps pass line meaning: how the come-out roll and point work, the chance of winning each point, the 1.41% house edge and what it costs in dollars. 21Curacao licenseCuracao license meaning: who issues it, how the 2024 LOK reform changed it, how to check a license number and why it is not a US state license. 21+.DenominationDenomination meaning for US players: how the coin size of a slot or video poker game sets the cost of each spin, with dollar examples and bet limits. Deposit limitDeposit limit meaning: how a cap on casino deposits works, daily, weekly and monthly examples in dollars, what offshore casinos publish and how to setDouble downDouble down meaning in blackjack: how doubling your bet for one card works, what it pays in dollars, rule variations, when strategy says to double. 21Download casinoDownload casino meaning: casino software you install on a computer instead of using a browser, how it compares with instant play, and who offers it. 2European rouletteEuropean roulette meaning: the single-zero wheel with 37 pockets, its 2.70% house edge, payouts in dollars and how it compares with American roulette.Free chipFree chip meaning: a fixed-dollar no-deposit bonus with wagering, game limits and a max cashout. See real published terms and what a $25 chip is worthFree spinsFree spins meaning: spins paid for by a casino promotion or won in a slot's bonus round. See what 50 spins are worth in dollars and the rules on winniFull payFull pay meaning in video poker: what a full-pay table is, how to spot one, what short pay costs in dollars and how bonus rules treat video poker. 21+Game weightingGame weighting meaning: the share of each bet that counts toward a bonus's wagering, by game type. Dollar examples for slots, blackjack and more. 21+Gold CoinsGold Coins meaning: the play-only coin at sweepstakes and social casinos, why you can't redeem it, what bundles really cost and how the law sees it. 2GrinderGrinder meaning: a player who makes many small bets over long sessions, often to clear wagering or earn comps. The math of grinding and its limits. 21Hard handHard hand meaning in blackjack: hands with no ace or an ace worth 1, how often each hard total busts, how to play hard 12 to 16 and dollar examples. 2High rollerHigh roller meaning: a player who bets far above average and gets VIP perks in return. What casinos publish on tiers and cashout caps, with examples. Hit frequencyHit frequency meaning: the share of spins or hands that return a win, how it differs from RTP and volatility, roulette math and wins that still lose. Hold and spinHold and spin meaning explained: how locking coin symbols and respins work, the jackpot tiers, RTG Hold and Win slots and the real cost in dollars. 21House edgeHouse edge meaning, explained simply: the average share of every bet a casino keeps. Turn it into dollars per hour for slots, roulette and video pokerInside betInside bet meaning in roulette: straight, split, street, corner and six-line bets, their payouts, odds and house edge in dollars, plus how they differInstant playInstant play meaning: casino games that run in your browser with no download, how it compares with download clients and apps, and partners that use itInsuranceInsurance meaning in blackjack: the 2:1 side bet offered when the dealer shows an ace, what it costs in dollars, even money and why charts say declineKeno spotKeno spot meaning: what a spot is, how 1-spot to 10-spot tickets work, the real odds of catching every number, and how keno counts toward bonuses. 21+KickerKicker meaning in poker: how the side card breaks ties, when it matters in casino table games, why video poker rarely rewards it and where it does. 21KYCWhat is KYC at an online casino? The ID checks behind every payout, the documents offshore casinos ask for, review times and how to pass first time. 2Live dealerLive dealer meaning: table games run by a real dealer on a video stream, how they differ from RNG games, cost per hour, and which casinos list them. 2MartingaleMartingale meaning: the double-after-every-loss betting system, the arithmetic of losing streaks, table limits and why it never removes the house edgeMatch bonusMatch bonus meaning: a casino adds a percentage of your deposit as bonus credit, up to a cap. See 100% to 400% matches in dollars and what wagering coMax cashoutMax cashout meaning: the most you can withdraw from bonus play, how fixed and multiplier caps work, and how they differ from weekly withdrawal limits.MCC 7995MCC 7995 meaning: the card-network merchant code for gambling. Why US banks decline or flag casino deposits, cash advance fees, and what to do insteadMirror siteMirror site meaning: why offshore casinos run copies on other domains, how fake lookalikes steal logins and how to check a casino’s official address. MultiplierMultiplier meaning in casinos: how 2x, 5x or 23x slot multipliers raise wins, and how 30x wagering and 10x cashout caps work in bonus terms. 21+.NeosurfNeosurf meaning: a prepaid voucher you pay with by entering its code. Which casinos list it for US players, minimums, and why payouts go elsewhere. 21No deposit bonusNo deposit bonus meaning: casino credit or spins you get without paying in first, with wagering, a max cashout and ID checks attached. Dollar example.Non-sticky bonusNon-sticky bonus meaning: your real money is played before the bonus, so you can often cash out early wins by giving up the bonus. Examples in dollarsOdds betOdds bet meaning in craps: the extra bet behind line or come bets that pays true odds, its 2:1, 3:2 and 6:5 payouts and how it cuts the overall edge. Offshore casinoOffshore casino meaning: what makes a casino offshore, how federal and state law treat them, what Michigan's regulator says and the risks for players.Outside betOutside bet meaning in roulette: red or black, odd or even, high or low, dozens and columns, payouts, real odds, the zero and costs in dollars. 21+.Pai GowPai Gow meaning: where the name comes from, how the tile game differs from Pai Gow Poker, the two-hand rules, the 5% commission and bonus limits. 21+.PaybackPayback meaning in casino games: what a payback percentage is, how it links to RTP and house edge, dollar examples and RTG paybacks from 91% to 99.6%.PaylinesPaylines meaning explained for US players: how slot lines pay, what they do to your bet per spin, fixed vs adjustable lines and RTG examples. 21+.PaytablePaytable meaning: what a slot or video poker paytable shows, how to turn multipliers into dollars, why pay tables change the return, and what to checkPending periodPending period meaning: the review window before a casino approves a withdrawal, published pending times at offshore casinos and what to do meanwhile.Pooled jackpotPooled jackpot meaning: one progressive prize fed by bets from many casinos or games. How pooling works, RTG examples, the math and the payout limits.Progressive jackpotProgressive jackpot meaning: a slot prize that grows with every bet until won. How the meter works, the cost in dollars, taxes and withdrawal caps. 21PushWhat is push in casino games? A tie that returns your stake: how pushes work in blackjack, baccarat and craps, with dollar examples and rules to checkRandom jackpotRandom jackpot meaning: a slot jackpot that can drop on any spin, whatever the symbols. RTG examples, cost per hour, and myths about due jackpots. 21+Real Series jackpotReal Series jackpot meaning: RealTime Gaming’s random, tiered jackpots on Real Series slots, how they differ from pooled progressives, and bonus rulesReality checkReality check meaning: a timed pop-up that shows how long you've played and what you've won or lost. How it works, who offers it and how to set your oReload bonusReload bonus meaning: a match bonus for existing players on later deposits, often weekly and code-based. See how reload wagering compares in dollars. Reverse withdrawalReverse withdrawal meaning: how canceling a pending casino payout returns money to your balance, what it can cost and how to protect your winnings. 21RNGWhat is RNG? A random number generator picks every slot spin, card and roulette result online. Learn how it works, who tests it and common myths. 21+.Royal flushRoyal flush meaning: the ace-high straight flush, its odds in a five-card deal, what RTG video poker lists as the top prize and why it is never due. 2RTPWhat is RTP? Return to player is the share of total bets a casino game pays back over millions of rounds. See what 95% vs 97.5% means in dollars. 21+.ScatterScatter meaning in slots: a symbol that pays or triggers free spins wherever it lands, no payline needed. RTG examples, dollar math and common myths. Self-exclusionSelf exclusion meaning: how a voluntary gambling ban works at casinos and in state programs, what offshore sites offer, and the steps to set one up.SessionSession meaning: one continuous sitting of casino play, from first bet to log-out. How to plan its budget, stop points and limits, with dollar exampleShoeWhat is shoe in a casino? The box that deals several decks in blackjack and baccarat: how it works, cut cards, deck counts, and what online games use.Social casinoSocial casino meaning: play-money casino games with no cash prizes, how they differ from sweepstakes and real-money sites, the law and spending risks.Soft handSoft hand meaning in blackjack: what makes a hand soft, why soft 17 matters for players and dealers, basic strategy for soft totals and examples. 21+.Source of fundsSource of funds meaning at online casinos: why a casino asks where your deposit came from, what evidence looks like, published rules and how to reply.SplitSplit meaning in blackjack: how splitting a pair into two hands works, what it costs in dollars, which pairs to split and the rule variations to checkStablecoinStablecoin meaning: a crypto token designed to hold a steady value, usually $1. How USDT and USDC work for casino deposits, and why payouts may differSticky bonusSticky bonus meaning: a casino bonus you can wager with but never withdraw, as it's removed when you cash out. See the dollar math and how to spot oneSurrenderSurrender meaning in blackjack: giving up half your bet to fold a weak hand, late vs early surrender, when it saves money, and rules to check. 21+.Sweeps CoinsSweeps Coins meaning: the prize coin at sweepstakes casinos, how you get it without buying, play-through and redemption rules, and where it's blocked.Sweepstakes casinoSweepstakes casino meaning: how Gold Coins and Sweeps Coins work, why New York, California and other states banned the model, and the risks. 21+.Turbo spinTurbo spin meaning explained: how fast-spin mode shortens slot animations, why it doesn’t change results, and how it raises what you stake per hour. 2UIGEAUIGEA meaning: what the Unlawful Internet Gambling Enforcement Act bans, why it targets payments rather than players, its exclusions and card declinesVideo poker pay tableVideo poker pay table meaning: how to read the payout grid, what 9/6 and 8/5 mean, how the full house and flush pays change RTP, and costs in dollars.VIP programVIP program meaning: a casino's tiered loyalty scheme that rewards heavy play with cashback, bigger matches and faster payouts. Real tier examples insVolatilityVolatility meaning for slots: how often and how big a game pays, why it differs from RTP, and how to match low, medium or high volatility to a budget.W-2GWhat is W-2G? The IRS form for reporting gambling winnings: the $2,000 slot threshold, the 300x rule, 24% withholding and the reported 90% loss cap. 2Wagering requirementWagering requirement meaning: how many times you must bet a bonus before withdrawing, how 30x bonus vs 30x deposit + bonus differ, and the real cost. Wallet addressWallet address meaning: the public string telling a blockchain where to send crypto. How casino deposit and payout addresses work, plus errors to avoiWays to winWays to win meaning for slot players: how 243 and 1,024 ways games pay, the reel math behind the numbers, costs per spin and RTG examples. 21+.WhaleWhale meaning: casino slang for the rare player who stakes and loses huge sums. Why casinos chase whales, and the deposit vs withdrawal gap offshore. WildWhat is wild in casino games? A wild substitutes for other symbols or cards to complete wins. Slot wild types, wild video poker and the dollar math. 2Wire ActWire Act meaning: what 18 U.S.C. 1084 bans, who it covers, the 2011 and 2018 DOJ opinions, the 2021 First Circuit ruling and what it means for playersWithdrawal limitWithdrawal limit meaning: how weekly, monthly and per-request caps at offshore casinos work, partner limits, and how long a $20,000 win takes to pay.

Slot, table and video poker terms

Game terms explain what you see on screen. On slots, a scatter usually triggers features wherever it lands, a wild substitutes for other symbols, and paylines or ways to win decide which combinations pay. A progressive jackpot grows with each qualifying bet, while a Real Series jackpot on RTG games can drop at random.

At the tables, blackjack terms such as soft hand, double down and insurance come up in every strategy chart. Video poker players should know what a full pay table is, because the pay table sets the game's return. And the Martingale entry shows, with numbers, why doubling after losses doesn't change the house edge: after seven straight losses from a $5 start, the next bet is $640.

A second group of terms explains where a casino stands legally. An offshore casino runs from outside the US and isn't licensed by any US state. A Curaçao license or an Anjouan license is a foreign license, not a US one. Sweeps Coins and Gold Coins are the two currencies of a sweepstakes casino, a model several states have banned. The Wire Act, UIGEA and W-2G entries cover the federal side.

Crypto terms such as stablecoin, wallet address and blockchain confirmation matter because most offshore casino banking runs on crypto. Finally, the safer gambling terms, including deposit limit, cool off, reality check and self-exclusion, describe the tools that help you stay in control.

Casino bonus terms defined, with dollar examples

Bonus jargon is where most money is lost to misunderstanding. Each term below links to its full entry, and the example shows what it means in dollars.

Bonus terms in dollars
TermMeaningDollar example
Match bonusBonus money added as a percentage of your depositA 200% match on $50 adds $100
Wagering requirementTotal bets needed before bonus money can be withdrawn20x on a $200 balance means $4,000 in bets
Game weightingThe share of each bet that counts toward wageringAt 5%, a $100 blackjack bet clears $5
Max cashoutThe most you can withdraw from a bonusA $100 cap on a chip turned into $600 leaves $500 removed
Free chipA small bonus with no deposit, usually cappedA $25 chip at 30x needs $750 in bets
Non-sticky bonusYour cash is played first; the bonus only kicks in afterWin on your $100 first and you can usually leave the bonus
CashbackA share of losses or deposits returned, often as bonus money25% back on a $100 deposit is $25
Comp pointsLoyalty points earned per betAt SlotoCash and Silver Oak, 100 points are worth $1

Read the full entries before you claim: the bonus code and bonus abuse entries cover the rules that most often void winnings.

Casino banking terms: from MCC 7995 to pending period

Banking and crypto terms
TermMeaningWhere you meet it
MCC 7995The card-network code for gambling transactionsDeclined card deposits
Pending periodTime a withdrawal waits before it's processedSilver Oak's terms describe a 7–10 business day review
Reverse withdrawalCanceling a pending withdrawal back into your balanceCashier history during the pending period
ChargebackA card payment reversed through your bankCard disputes; not available for crypto
Source of fundsProof of where your deposit money came fromLarger withdrawals; SlotoCash and Miami Club terms allow the request
Withdrawal limitThe most you can cash out per week or month$2,500 to $5,000 a week at partners
Blockchain confirmationNetwork approval of a crypto transactionCrypto deposits that haven't arrived yet
StablecoinA coin designed to track the dollar, such as USDTMiami Club lists USDT deposits of $25 to $2,500
Wallet addressThe string you send crypto toThe casino cashier's deposit screen

The Neosurf entry covers prepaid vouchers, which Miami Club lists from $10 for deposits only.

US gambling law terms explained

Legal terms decide whether a casino answers to anyone. These are the ones that come up most on our state and law pages.

Legal and licensing terms
TermMeaningKey date or figure
Wire ActFederal law on interstate wire betting by betting businesses, 18 U.S.C. § 10841961; First Circuit ruling January 20, 2021
UIGEAFederal law barring gambling businesses from taking payments for unlawful internet gambling2006; 31 U.S.C. §§ 5361–5367
W-2GThe form payers file for certain gambling wins$2,000 for slots, keno and bingo in 2026
Curaçao licenseA license from the Curaçao Gaming AuthorityNew law in force December 24, 2024
Anjouan licenseA license from the island of Anjouan in the ComorosSilver Oak's terms name one
Sweepstakes casinoA site using Gold Coins for play and Sweeps Coins redeemable for prizesBanned in ten states by October 2026
Social casinoPlay-money casino games with no cash prizesNot covered by sweepstakes bans aimed at cash prizes, per New York's law

Our laws hub explains each one in depth, with dates and the statute text, such as the Wire Act at Cornell's Legal Information Institute (opens in a new tab) and UIGEA's payment rules (opens in a new tab). The offshore casino entry ties them together: it explains why a foreign license, or none, leaves you without a US state regulator to complain to, and what that means if a payout stalls or the casino changes its terms after you deposit.

Blackjack, roulette and craps terms at a glance

  • Soft hand and hard hand: a soft hand has an ace counted as 11, such as ace-6 for soft 17; a hard hand has no ace counted as 11.
  • Split and surrender: splitting turns a pair into two hands with a second bet; surrender gives up half the bet to end the hand, where allowed.
  • Push: a tie, where your bet is returned.
  • Shoe: the box that holds several decks; RTG's Super 21 uses six decks, and RNG games reshuffle every hand.
  • European roulette: 37 pockets with one zero, for a 2.7% house edge.
  • Craps pass line, come bet and odds bet: the core craps bets, each explained with an example.

For poker-style games, the ante, kicker and royal flush entries cover the terms you'll see on pay tables.

Slot machine terms: from RNG to turbo spin

Slot screens and help files use their own vocabulary. These are the terms you'll meet in our slot reviews, each with a full entry.

Slot terms
TermMeaning
RNGThe random number generator that decides each result independently
PaybackAnother word for RTP, the long-run return on stakes
PaytableThe screen listing what each symbol combination pays
MultiplierA feature that multiplies a win, such as 2x or 5x
Cascading reelsWinning symbols disappear and new ones drop in
Hold and spinSpecial symbols lock while the rest respin
Buy featurePaying to enter a bonus round directly; may count toward bonus max bet rules
Hit frequencyHow often a spin returns any win; developers rarely publish it, and we never quote it
Denomination and coin valueThe size of each coin, which multiplies with lines to make the total bet
Bet maxA button that sets the largest allowed bet
Autoplay and turbo spinAutomatic and faster spins, which raise the number of bets per hour

Autoplay and turbo modes deserve a second look: at $1 a spin, playing twice as fast doubles the hourly stake and the hourly expected cost. Our random jackpot entry covers the RTG feature that can drop on any spin.

Safer gambling terms and the tools partners list

The safer gambling entries describe tools that help you stay in control. Offshore casinos vary in what they offer, so here's what three partners publish on their own sites.

Published responsible gambling tools
ToolSlotoCashMiami ClubSilver Oak
Deposit limitOn requestYesYes
Time limitOn requestYesNot listed
Cool offNot mentionedNot listedYes
Self-exclusionMinimum 6 months, by emailPermanent, by email and formVia live chat, processed immediately
Reality checkNot mentionedNot listedNot listed

Third-party reviews list no tools at Planet 7, Royal Ace or Slot Madness. Whatever a casino offers, blocking software and the National Problem Gambling Helpline at 1-800-MY-RESET (1-800-697-3738) work everywhere. The bankroll and session entries help you plan spending before you play. Terms that describe big spenders, such as high roller, whale and grinder, are defined too, along with the VIP program perks casinos use to reward heavier play. Those perks are marketing, not a reason to play more.

21+ (18+ where allowed). Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: responsible gambling tools and free help. Gambling problem? Call or text 1-800-MY-RESET (1-800-697-3738).

Frequently asked questions

What does RTP mean in a casino?

RTP stands for return to player: the percentage of all money staked on a game that it's set to pay back over a very large number of plays. A slot with 96% RTP has a 4% house edge, so $1,000 of total spins has an expected cost of $40. Short sessions can land far above or below that. RTG slots with published figures commonly sit between about 94% and 97.5%. Read the RTP glossary entry and how slot RTP works.

What is a wagering requirement?

A wagering requirement is the total amount you must bet before bonus funds, and winnings from them, can be withdrawn. It's written as a multiple, such as 25x, applied to the bonus alone or to deposit plus bonus. With a $100 deposit and $200 bonus at 25x deposit plus bonus, you must wager $7,500. Games may count at different rates. See the wagering requirement entry and what is wagering requirement.

What does max cashout mean?

Max cashout is the most you can withdraw from a bonus, whatever you win while playing with it. If a no deposit chip has a $100 max cashout and you turn it into $900, only $100 can be withdrawn and the rest is removed. Some welcome bonuses have no cap, while others limit cashouts to a multiple of the deposit. Always check before you play. See the max cashout entry and max cashout explained.

What does KYC mean at an online casino?

KYC stands for know your customer: the identity checks a casino runs before paying you. Expect to send a photo ID and proof of address, and sometimes a selfie with your ID, card images or proof of where your money came from. Silver Oak's terms, for example, block withdrawals until these checks are complete. Doing KYC early avoids delays later. Read the KYC entry and what is KYC.

What is an offshore casino?

An offshore casino is one that operates from outside the US and isn't licensed or regulated by any US state, even if it accepts US players. It may hold a foreign license, such as from Curaçao or Anjouan, or none at all. There's no state regulator to complain to and no state protection of balances. Whether playing is lawful depends on your state's law. See the offshore casino entry and offshore casinos legality.

What is the house edge in a casino?

The house edge is the share of every bet a game is set to keep over the long run, equal to 100% minus the RTP. European roulette has a 2.7% edge, so $500 of bets has an expected cost of $13.50, while Jacks or Better at 99.54% RTP has an edge of 0.46% with perfect play. The edge doesn't change with bet size, only the dollar cost does. Read the house edge entry and house edge explained.

What is a sticky bonus?

A sticky bonus is one you can play with but never withdraw: when you cash out, the bonus amount itself is removed and only the winnings above it can be paid. If you deposit $100, get a $100 sticky bonus and finish wagering with $300, about $200 is withdrawable. Terms decide the details, so read them before you claim. See the sticky bonus entry and what is a sticky bonus.

What is game weighting in casino bonuses?

Game weighting is how much of each bet counts toward a bonus's wagering requirement. Miami Club's bonus terms, for example, count slots, keno and scratch cards at 100%, video poker at 10% and blackjack at 5%, so $100 of blackjack clears only $5. Some games are excluded entirely, and playing them can void the bonus. Check the weighting table before you play. Read the game weighting entry and our bonus game weighting page.

What does volatility mean in slots?

Volatility describes how a slot spreads its payouts: low volatility pays smaller wins more often, and high volatility pays less often but bigger. It doesn't change the RTP. Third-party data labels Enchanted Garden low and Panda Magic high, with listed RTPs of 97.5% and 95%. A high-volatility game can drain a small budget before a feature lands. See the volatility entry and slot volatility explained.

What are Sweeps Coins?

Sweeps Coins are the second currency at sweepstakes casinos, which can be redeemed for cash prizes, unlike Gold Coins, which are for play only. That dual-currency model is what ten states have banned, including New York, California and Oklahoma. Sweepstakes sites argue they aren't gambling, but regulators increasingly disagree. Before you play, check whether your state has banned it. See the Sweeps Coins entry and what are sweeps coins.