Online casinos are one of the most popular forms of casino gaming. Since the first one to offer automated payouts opened in 1996, the online casino industry has taken the world by storm. The advance of technology has seen some incredible mechanics and even more exciting ways to play, win, and explore new worlds. Online casinos offer an array of classic table games, slot games, live casino games and immersive adventures that brick-and-mortar casinos could only dream of. With so much to choose fromit can be hard to know where to start. So, with the help of the poker Tony G aficionado we’ve put together an essential A-Z guide of online casino terminology to get you feeling like a pro in no time!

Read on to find out more.


This is a feature you’ll find on most online Slots. You can set a number, usually 10, 20, 50, 75 or 100, and the reels will spin for that amount, automatically.


The balance, not to be confused with bankroll, is the amount of money you have on your online casino account.


Your bankroll is the amount a player dedicates to playing casino games. Your bankroll should only be as much as you are willing to lose.


Some online casinos offer cashback as a loyalty bonus. This means that a portion of your losses will be added into your cashback balance. Then, depending on the casino, at the end of the week, or month, this balance will be unlocked and you’ll be able to play with it.


This is the act of withdrawing your winnings to your bank account. Some players like to cash-out slowly and steadily, whilst others wait (and risk) until they have a large portion to withdraw.

Deposit bonus

Some online casinos offer you bonus money or free spins on top of your deposit.

Evolution Gaming

Evolution Gaming is the world’s leading Live Casino games provider. You’ll find their games at leading casinos such as Paddy Power’s online casino.

Free spins

Free spins can be rewarded as a casino bonus, but they’re also a bonus feature that can occur when playing online slot games. They’re triggered randomly during gameplay or when you land certain combinations on the reels, often leading to very desirable multipliers.

Gaming license

Every online casino must have a gaming license in order to operate, ensuring that they’re fair and playing by the rules. Two of the most well-known online gambling licenses are the Curacao and Malta gaming licenses.

High roller

Someone who plays with big sums of money is known as a high roller.


In Blackjack, you’re often offered insurance on your bet. This means that if you and the dealer both get a Blackjack, you will receive a payout of 2:1 instead of losing the hand. Many professionals advise against taking insurance, however.


The jackpot is often the maximum win available in a game. Some Slots offer progressive jackpots which grow each time a player bets money on it. These can be life-changing sums.


The minimum and maximum amounts a player can bet during table games.

Max bet

The maximum wager a player can place during a game.

No deposit bonus

Some online casinos will offer bonuses to new players such as free spins or bonus money, just for signing up.


Online Slots can have anywhere from three paylines to over a thousand. These can be straight, horizontal, in a zig-zag pattern or completely random, but ultimately decides how winning combinations pay. Some Slots even allow you to adjust the number of paylines you want to play with.


Some Slot games offer what’s called a retrigger when you land three scatters during a free spins feature, providing you with even more spins.


This stands for Return to Player, and is the rate at which the games redistribute the money players put into it.Online Slots have a better RTP than those in land-based casinos.


A special symbol that grants you free spins on online Slots. Depending on the game, the bonus will be triggered when you land three to six scatters.


This refers to how much risk there is involved in each slot game. A slot machine with high volatility is more likely to offer big bonuses, but less frequently, whereas a low volatility slot will offer more regular payouts that aren’t as high.


Your wager is essentially how much you bet during a game, but when playing with a deposit bonus or after receiving free spins, you must meet the wagering requirements before you can withdraw your balance. The wager is the number of times you have to play the bonus money before you’re able to cash-out.