Online Casino Glossary: 50 Gambling Terms You Must Know

RTP (Return to Player) : A percentage that shows what a slot is expected to pay back to players after many spins.
Volatility: The measure of risk in a game; high volatility brings larger wins, but they arrive less often.
Payline: An imaginary line across the reels where matching symbols must land for a win.
Wild Symbol: A symbol that can stand in for others, helping to complete winning combos.
Scatter Symbol: Landing enough scatters often starts bonus features like free spins or multipliers.
Free Spins: Rounds where the reels spin, but you don't bet any extra money.
Jackpot: The biggest payout you can hit on that machine.
Progressive Jackpot: A top prize that grows each time players make a bet until somebody claims it.
Bonus Round: A feature that offers extra wins or small interactive mini-games.
Reels: The spinning columns on a slot machine that show the symbols.

House Edge: The built-in statistical margin that ensures the casino profits over the long run.
Bankroll: The dedicated sum a gambler commits to the session and will not exceed.
Dealer: The employee who controls the flow of the game, distributes cards, and enforces rules.
Hit: In blackjack, the request for an additional card to improve the player’s total.
Stand: In blackjack, the decision to keep the current hand and take no more cards.
Bust: Exceeding 21 and losing the hand, regardless of what others do.
Push: A situation in blackjack where the player and dealer show the same total and neither wins.
Fold: In poker, to relinquish one’s hand and any claim on the existing pot.
Bluff: Pretending ones cards are stronger than they really are in order to mislead opponents.
Pot: The aggregate money or chips bet during a hand and awarded to the winning player.

Wager: A term for any bet you place on a game or event.
Stake: The actual amount of cash you put down on that bet.
Odds: The chance something will happen, plus how much you'll earn if it does.
Even Money: A bet that pays out 1-to-1; for example, bet RM10 and win another RM10.
Payout: The total money you get when your bet wins.
All-In: Pushing your whole bankroll or chip stack into the pot.
Minimum Bet: The smallest sum the house will let you bet.
Maximum Bet: The largest bet the house will allow in that round.
Martingale Strategy: A system where you double your bet each time you lose.
Flat Betting: Sticking with the same set amount no matter what happens each round.

Betting Requirement: The number of times you need to bet the bonus money before you can cash it out.
Bonus Balance: The pile of bonus funds sitting in your account right now.
Cash Balance: The real money you can withdraw and spend.
Welcome Bonus: The extra cash or spins new players get just for signing up.
No Deposit Bonus: Free money given to you without having to make any deposit first.
Free Play: Game time where you don't risk your own cash.
Demo Mode: A test version of the game that runs on pretend credits.
Live Dealer: A real dealer running the game you watch live on video.
RNG (Random Number Generator): The software that makes sure every game result is random and fair.
Mobile Casino: An online casino you can open and play on a phone or tablet.

Self-Exclusion: This option closes your casino account for a time you choose, so you can’t log in.
Cooling-Off Period: When you need a short pause, this setting locks your account for a few hours or days.
Reality Check: A pop-up timer shows how long you’ve been playing, giving you a quick look at the clock.
Deposit Limit: You pick a weekly or monthly cap, and the casino won’t take more money than that.
Time Limit: After your planned session time is up, the casino logs you out and asks you to take a break.
Gambling Addiction: The urge to gamble grows so strong it harms your money, mood, and daily life.
Problem Gambling: Bets start to strain your work, family ties, or other parts of your world outside the screen.
Voluntary Exclusion: Apps let you close many casino accounts at once, blocking future log-ins for smart control.
Support Helpline: A friendly phone line is ready to talk and point you toward recovery, no matter how deep the struggle.