Online Casino Glossary: 50+ Terms Explained
From wagering requirements to volatility, understand every casino term you'll encounter as a player.
A–C
All-In: Betting your entire stack (poker term).
Bankroll: Your total gambling budget.
Cashback: A percentage of net losses returned as bonus funds.
Comp Points: Loyalty points earned on wagers, redeemable for cash or bonuses.
D–H
Dead Heat: Two or more selections finish level (horse racing/sports).
Edge: Mathematical advantage held by the house or player.
Free Spins: Complimentary slot spins with no cost to the player.
House Edge: The casino's built-in mathematical advantage on every game.
I–P
In-Play Betting: Placing bets on events that are already underway.
Jackpot: Large prize pool that can be won on certain slot or table games.
KYC: Know Your Customer — identity verification required by regulators.
Live Casino: Real dealers streamed in real-time via HD video.
MGA: Malta Gaming Authority — one of the most respected online gambling regulators.
Odds: The probability of an outcome expressed as a fraction, decimal, or American format.
R–W
RNG: Random Number Generator — ensures fair game outcomes.
RTP: Return to Player — the percentage of stakes paid back to players over time.
Sticky Bonus: A bonus that cannot be withdrawn, only the winnings from it.
Variance: How often and how much a game pays out relative to its average.
Volatility: See Variance.
Wagering Requirement: The number of times you must wager a bonus before withdrawing winnings.