Roulette Terms | Glossary

Roulette TermsHaving trouble getting used to all the roulette lingo? This short list of roulette terms and meanings should help clear things up for you. There aren't that many unique terms in roulette thankfully, so it shouldn't be too difficult to get to grips with the majority of 'em.

Roulette Glossary

Called Bets

The bets found in racetrack roulette that allow you to bet across specific sections of the roulette wheel.


The person employed by the casino to operate the roulette wheel.

En Prison

The En Prison rule allows players to keep half of the money on any even money wager for the next spin if the previous roulette spin came up as '0'.


The Italian mathematician that invented the Fibonacci sequence, which is what the Fibonacci betting system is based upon.

Inside Bet

Any bet on the numbers section of the roulette wheel.

For example, single number bets, split bets, 4 number bets and so on.

La Partage

This rule is similar to the En Prison rule in that instead of leaving half of a lost even money bet due to a '0', the money is returned straight back to the player and not left on the table for the next spin.

Outside Bet

Any bet placed outside of the central numbers area.

Outside bets include; any even money bet, column bets and dozen bets.

Split Bet

A bet placed across two adjacent numbers, giving odds of 17:1 for each of the two numbers.


The set amount that you are making bets with.

For example, if you are going to use the Martingale system starting with $100, you may want to start betting with $5 amounts. Therefore $5 = 1 unit, $10 = 2 units, $20 = 4 units and so on.