Slot machines are a great gaming experience. However, there are a few terms you need to be acquainted with so that you are aware of the finer aspects of the game.

3 Reel Slots

These slots give players a better chance of hitting the winning combination. The payouts are determined by the Random Number Generator and are generally less than 5-reel slots

5 Reel Slots

The odds of hitting a winning combination are lower than 3-reel slots. However, payouts are determined by the RNG and payout percentage, which is usually more than 3-reel machines.


The budget of a player and the amount the player decides to gamble.

Bet Amount

The amount of credits being played at a given time, which is usually between 1 and 200. The amount is indicated on the slot machine.

Bet Max

The maximum amount of credits for each reel spin.

Betting Limit

The minimum and maximum amounts that can be wagered in a single bet.

Bonus Feature

This feature is available on bonus slots where players are allowed to add to their payout.

Bonus Multiplier Slots

A bonus is awarded for playing the maximum number of coins per spin.

Coin Size

This is the denomination or value of each coin.

Free Spins

These are spins awarded free when a specific combination appears on the screen.


A slang word for a slot machine win.


The winning combination for a play that is produced by the RNG and payout-schedule.

Maximum bet

With each game there are a maximum number of coins that you can play per spin. Maximum bets are usually required to qualify for the jackpot.


Slots machines with more than two pay lines used for winning combinations.

Pay line

This is the line at the center of the slot machine where the designated symbols must align in order to receive a payout.

Pay table

The pay table lists information about payouts, bonus features, maximum coin bets, and payoffs for each winning combination.

Payout Percentage

The amount of wager that is given back to the customer as winnings is measured as a percentage. For example, a 97% payout indicates that 97 cents will be returned to the customers in payouts, while the remaining three cents are the casino’s earnings.

Progressive Jackpot

A slot machine where the potential jackpot increases with each coin played. When a player hits the progressive jackpot the amount resets to the starting number.

Random Number Generator (RNG)

This is a computerized program that generates numbers at random for all slot games. Many land-based casinos also use RNG, which is a sophisticated program that ensures fair play where wins and payouts are concerned.


The rotating barrels with symbols on the slot machine.

Winning combinations

These are the possible winning outcomes.