American Wheel - A roulette wheel that has a total of 38 numbers ( 0 and 00 and numbers 1-36).

Ball - A plastic ball, spun in the opposite direction of the wheel's spin. The roulette ball determines the pay-off for each spin each time it land in one of the number slots.

Carré - Corner Bet (French).

Colonne - Column Bet (in French).

Column Bet - The roulette layout is devided into thre columns. Bets on a combination of twelve numbers at the same time. Pays 2-1.

Combination Bet - Using one or more chips in the same position to wager on more than one number each time.

Corner Bet - One wager that bets four numbers at the same time. An inside bet. Pays off at 8 to 1.

Croupier - An empoyee of an European casino. Operates the roulette table with other croupiers.

Dozen Bet - A wager on twelve numbers on the roulette layout at the same time. Numbers 1-12, 13-24, or 25-36.

En Prison Rule - The player has a choice of either surrendering half of the bet or allowing the bet to be imprisoned for another spin, in which case, the entire wager will be returned if won.

Even-Odd Bet - Pays 1-1 if the winning number is Even or Odd. This is an 18 number wager on the outside.

Five Number Bet - The bet which gives the casino a 7.89% edge over the player. Bets numbers 0, 00, 1, 2, 3 at the same time.

French wheel (European wheel) - A wheel containing just one 0 zero. Mainly found in European casinos.

High-Low Bet - Pays 1-1. Bets 18 numbers at the same time (1-18 or 19-36).

Inside Bet - A wager placed on any individual number on the roulette layout including 0 or 00, or any combination of the numbers.

Martingale System - A well known roulette system which dates back over a 100 years. A player doubles his bet after each loss until he wins (or runs out of money).

Outside Bet - Red, Black, Odd, Even, High, Low.

Red-Black Bet - An 18 number wager which pays off at 1-1.

Six-Number Bet - An inside combination bet at six numbers at the same time.

Split Bet - An inside combination bet of two numbers at the same time.

Straight Bet - A single wager on a single number or combination bet.

Straight Up Bet - Pays 35-1. Bets just one number (0, 00, 1-36).

Trio Bet - A combination bet on three numbers at the same time. An inside wager.

Zero, Double-zero - Green in color. Can be wagered the same way as numbers 1-3

D'Alenbert System - A progressive betting system. Two numbers are cancelled every time a previous bet is won, and one number, the total of two end numbers, is added whenever a previous bet is lost.