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Casino terms · clearly explained

Casino glossary

A casino and bonus glossary in one place: bonus terms, game maths, and payout and safety terms in plain language. Quickly find what terms like RTP, wagering, volatility or house edge mean, how to read them and why they affect your chances of winning.

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100 terms found
Security

Gaming break

A short-term account freeze — usually 24 hours to a few weeks. A lighter tool than self-exclusion, good for slowing down.

Also searched as: time-out, cooling-off period, account freeze
Security

HAMPI

A national self-exclusion register through which you can block yourself from all Estonian-licensed casinos at once for free — for at least six months.

Also searched as: self-exclusion register, gambling ban, gambling restriction
Bonuses

High roller

A high-stakes player to whom casinos offer higher limits, special terms and VIP treatment.

Also searched as: high roller, VIP player, whale
Metrics

Hit frequency

The percentage of spins that pay any win. It shows how often a game pays — not how much.

Also searched as: hit frequency, win frequency
Metrics

House edge

The casino’s mathematical edge over the player, expressed as a percentage. It’s the flip side of RTP: 96% RTP = 4% house edge.

Also searched as: house edge, house margin
Games

Jackpot

A large prize pool that can be fixed or progressively accumulating — the latter grows with every bet until someone wins it.

Also searched as: progressive jackpot, big win
Games

Keno

A lottery-like number game where you pick numbers from 1–80 and the win depends on the number of hits. Fast, but with a higher house edge than table games.

Also searched as: keno lotto, number game
Security

KYC

An identity check a casino uses to securely verify the account and withdrawals and to prevent money laundering.

Also searched as: identity verification, know your customer
Security

Licence

A licence issued by the regulator (in Estonia the Tax and Customs Board) that lets a casino operate legally and protects players’ rights.

Also searched as: license, operating licence
Games

Live casino

A casino-game format with real dealers streamed directly to the player, with roulette, blackjack and other tables.

Also searched as: live casino, live casino
Guide

Casino glossary: terms in plain language

The casino world is full of terms that directly affect your chances of winning. Our glossary explains them in plain language.

From bonus terms to game maths — knowing the concepts helps you make more informed decisions and avoid unfavourable offers. Below are the most important terms to start with.

Why know casino terms

A term like wagering requirement or RTP can completely change a bonus’s value. Once you understand what they mean, you immediately see whether an offer is good or not.

Tip

Come across a term in a bonus’s conditions? Look it up in our glossary or calculate the impact with the calculator.

Where to start

The most important terms concern bonuses and game maths — these affect your money most directly.

  • RTP — a game’s theoretical payback percentage to the player.
  • Wagering requirement — how many times to wager a bonus.
  • Volatility — how often and how big the wins a game gives.
  • House edge — the casino’s statistical edge over the long run.
Frequently asked questions

Glossary FAQ

What is RTP?
RTP (Return to Player) is a game’s theoretical payback percentage. A 96% RTP means the game returns on average 96% of bets over the long run — i.e. a 4% house edge.
What does a wagering requirement mean?
It tells you how many times you must wager the bonus before withdrawing. Read a fuller explanation with examples in our glossary.
What is a game’s volatility?
Volatility (or variance) shows the risk level: high-volatility games give rare but big wins; low-volatility ones give more frequent but smaller wins.
What’s the difference between house edge and RTP?
They’re two sides of the same coin: RTP + house edge = 100%. A 96% RTP means a 4% house edge.
Where do I find more terms?
Our full glossary explains all the most common casino terms in Estonian, with examples.