🎲 Online Casino Glossary (A–Z)

A

All-In – A poker move where a player bets all of their remaining chips. It’s a high-risk strategy used when confident in a hand or trying to pressure opponents.

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Autoplay – A slot machine feature that allows spins to play automatically for a set number of rounds. Often customizable with stop limits.

B

Bankroll – The amount of money a player sets aside for gambling. Good bankroll management helps control risk and extend gameplay.

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Betting Limits – The minimum and maximum amounts allowed per wager at a table or slot. Casinos set these to suit different player budgets.

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Bonus – Extra funds or spins offered by casinos to attract and reward players. Common types include welcome bonuses, no deposit bonuses, and free spins.

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Bonus Round – A special feature in slots that usually offers higher payouts or free games, triggered by specific symbols like scatters.

C

Cashback Bonus – A promotion where casinos return a percentage of a player’s net losses over a period, usually daily or weekly.

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Croupier – The dealer who manages bets and payouts at a table game such as roulette or blackjack.

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Curacao License – A popular online gambling license issued in Curacao. It’s less strict than UKGC or MGA, but widely used by international casinos.

D

Deposit Bonus – A reward given when players add money to their casino account, often matching the deposit amount by a percentage (e.g., 100% up to $200).

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Double Down – In blackjack, the option to double your bet after the first two cards, receiving only one more card.

E

E-Wallet – A digital payment method (PayPal, Skrill, Neteller) used for fast deposits and withdrawals at casinos.

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European Roulette – A roulette variation with a single zero pocket, giving players better odds compared to American roulette.

F

Free Spins – A type of slot bonus that lets players spin the reels without using their own money. Often tied to welcome offers or promotions.

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Flop – In poker, the first three community cards dealt face-up after the first betting round.

G

Game Provider – A company that develops casino games, such as Pragmatic Play, NetEnt, or Microgaming. Game quality often depends on the provider.

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Gambling Commission (UKGC) – The UK authority regulating online casinos to ensure fairness and player protection.

H

High Roller – A player who wagers large amounts of money. Casinos often offer exclusive VIP perks to attract high rollers.

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House Edge – The built-in casino advantage over players, expressed as a percentage. For example, roulette has a higher house edge than blackjack.

I

Instant Withdrawal – A fast payout feature where winnings are processed and transferred within minutes to a few hours.

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Inside Bet – In roulette, bets placed on specific numbers or small groups of numbers. Higher payouts but lower odds of winning.

J

Jackpot – A large prize, often progressive, that grows over time as players wager on a slot. Progressive jackpots can reach millions.

K

KYC (Know Your Customer) – A verification process where casinos require players to submit ID, proof of address, and payment details for security and anti-fraud compliance.

L

Live Dealer – Online casino games streamed in real time with a human dealer, offering an immersive experience similar to land-based casinos.

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Loyalty Program – A rewards system where players earn points for wagers, redeemable for bonuses, cashback, or perks.

M

Martingale System – A betting strategy where players double their bet after every loss, aiming to recover losses with one win. Risky but popular in roulette.

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Mobile Casino – Online casinos optimized for smartphones and tablets, often available via apps or mobile-friendly websites.

N

No Deposit Bonus – A bonus given to players without requiring a deposit. Usually small, with strict wagering requirements.

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NetEnt – A leading game provider known for high-quality slots like Starburst and Gonzo’s Quest.

O

Odds – The probability of winning a bet, expressed as a ratio or percentage. Different games have different odds of winning.

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Outside Bet – In roulette, bets placed on larger sections of the table (red/black, odd/even). Lower payouts but higher winning chances.

P

Payline – A line across slot reels that determines winning combinations. Modern slots may have hundreds of paylines.

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Progressive Jackpot – A jackpot that increases every time a player makes a bet, pooled across multiple casinos until it’s won.

Q

Quick Spin – A slot feature that speeds up reel animations, allowing for faster gameplay.

R

RNG (Random Number Generator) – Software used in casino games to ensure results are random and fair. Licensed casinos are regularly tested for RNG fairness.

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RTP (Return to Player) – The percentage of total wagers that a game is designed to return to players over time. A 96% RTP means players can expect $96 back for every $100 wagered (theoretically).

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Roulette – A classic casino game where players bet on numbers, colors, or sections, and a ball spins around a wheel to determine the outcome.

S

Scatter Symbol – A special slot symbol that often triggers free spins or bonus features when enough land on the reels.

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Self-Exclusion – A responsible gambling tool allowing players to block themselves from playing for a set period.

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Stake – The amount of money bet on a single round or hand.

T

Table Limits – The minimum and maximum bets allowed at a casino table. Important for bankroll management.

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Turn – In poker, the fourth community card dealt face-up after the flop.

U

UK Gambling Commission (UKGC) – The strictest regulator in online gambling, ensuring high standards of fairness and responsible play.

V

Volatility (Variance) – Describes how often and how much a slot pays out. High volatility = rare but big wins; low volatility = frequent but smaller wins.

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VIP Program – Exclusive perks, bonuses, and rewards offered to loyal or high-spending players.

W

Wagering Requirement – The number of times a bonus must be wagered before winnings can be withdrawn. Example: 30x means a $100 bonus requires $3,000 in bets before withdrawal.

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Wild Symbol – A slot symbol that substitutes for others to form winning combinations, like a joker in card games.

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Withdrawal Limit – The maximum amount a player can cash out in a given period (daily, weekly, or monthly).

X

Xtreme Slots – A marketing term some casinos use to describe high-volatility or feature-packed slots.

Y

Yield – The overall return a player gets compared to the money wagered, often used in betting contexts.

Z

Zero (Roulette) – The green pocket on roulette wheels (single zero in European, double zero in American). This gives the casino its edge.