| Action | The amount of money wagered over a given period of time. |
| Adrenotrend system | Classification of systems that wager on the side that won previously. Another name for a streak method of betting. |
| Alenbert system | A progressive system of betting where you increase your bet by one unit after a loss and decrease your bet by one unit after a win. |
| American Wheel | A roulette wheel with 38 slots numbered 1 to 36 plus two zeros, 0 and 00. |
| Backtrack | The outer, stationary rim of the roulette wheel where the ball is spun. Also called the ball-track. |
| Ball-track | The outer, stationary rim of the roulette wheel where the ball is spun. Also called the backtrack. |
| Biased numbers | A Big Number that continues through long-term analysis and produced by Biased Wheels. |
| Biased wheel | A roulette wheel that has an imperfection that causes certain numbers or sections of numbers to appear at a higher frequency than probability allows for. |
| Big number | A number that has hit more than its theoretical average. |
| Black bet | A wager on the black color numbers with a payout of 1 to1. |
| Bottom track | The slanting, stationary, inner area of a roulette wheel down which the ball slides before bouncing onto the wheel head and into a pocket. |
| Cancellation betting system | A betting system using a series of numbers that cancels numbers after winning a bet and adds numbers after losing a bet. One specific type of Cancellation System is known as the LaBouchere System. |
| Capping a bet | Illegally adding more chips to a bet that has already won. It is a form of Past Posting. |
| Carr� | French for Corner bet. |
| Chameleon strategy | Looking for players who have been winning and then mimicking their betting patterns in the hope that they will continue to be lucky, have found biased wheels, or are visual wheel trackers. |
| Chasing losses | Increasing your bets in order to recoup what you’ve lost. |
| Cheval | French for Split bet |
| Choppy game | A game where neither the player nor the house has been winning consistently. Or, a game where no discernible streaks nor patterns have been appearing. |
| Cold table | Any table where you and/or other players have been losing. |
| Color up | To exchange smaller denomination chips for larger denomination chips at a table. |
| Column bet | One of the three longer divisions of the layout containing 12 numbers. |
| Colonne | The French term for Column Bet. |
| Combination bet | A bet with one chip or more chips on two or more numbers. |
| Corner bet | A bet on four numbers |
| Croupier | The person who operates the roulette table. |
| d’Alembert betting system | A system of betting where you increase your bet by one unit after a loss and decrease your bet by one unit after a win. |
| Derniere | A French term for last and refers to the last group of 12 numbers in the Dozen Bet. |
| Dozen bet | One of three dozen numbers on the layout, 1-12, 13-24, 25-36. |
| Double-up system of betting | A betting system whereby bets are doubled after a loss in hopes of recouping the previous loss. |
| Double-zero | 00 number slot on the roulette wheel. Only found on American roulette wheels. |
| Douzaine | French term for the Dozen Bet. |
| En plein | French for Straight up bet. |
| En prison | French phrase. A rule applied to even money bets only. When the outcome is zero, some casinos will allow the player to either take back half his bet or leave the bet (in prison) for another spin. In the second case, if the following spin the outcome is again zero, then the whole bet is lost. |
| European wheel | A roulette wheel with 37 slots numbered 1 to 36 plus one zero, 0. |
| Even bet | A wager on even numbers with a 1 to 1 payoff. |
| Even money | A bet that pays off at one to one. In roulette Red, Black, Odd, Even, Low, and High bets all pay even money. |
| Fibonacci betting system | A progressive betting system where each bet is a combination of the two previous numbers. |
| Flat bettor | A player who never varies the size of his bets, and bets the same amount each time. |
| Five number bet | Common with American double zero roulette wheels. It is a bet covering 0, 00, 1, 2, and 3. |
| French wheel | A wheel containing just one zero. |
| Gaffed Wheel | A wheel that has been rigged. |
| Golden Numbers | Numbers that have hit out of all proportion to their probability. |
| Grand Martingale | A variant of the Martingale System where you double your bets and add one extra unit after a loss. |
| High bet | An even money bet for the top half (1-18) of the numbers |
| Impair | French term for the Odd Bet. |
| Inside bet | A bet anywhere on the number betting area of the roulette layout. |
| La partage | French phrase. A rule similar to the en prison rule, only in this case the player loses half the bet and does not have the option of leaving the bet en prison for another spin. This refers to the ‘outside’ even-money bets Red/Black, High/Low, Odd/Even and applies when the outcome is zero. |
| LaBouchere betting system | A type of Cancellation Betting System where numbers are cancelled out from a user-defined string of numbers after a win and added to the string after a loss. The string of numbers determines the next amount to bet. |
| Layout strategies | Betting systems and strategies that try to overcome the house edge simply by placing different types of bets, without trying to determine if the wheel or dealer is biased. |
| Line bet | A wager that one of six numbers will win. |
| Low bet | An even money bet for the bottom half (19-36) of the numbers. |
| Manque | French term for Low Bet. |
| Martingale betting system | A type of Double-Up System whereby you double your bets after every loss. Meaning that when you win, you’ll win back all of your loss, plus the payoff for the original wager. |
| Money plays | The call that alerts the dealer and the pit that you are betting cash and not chips. |
| Negative progression | Any system of wagering where you increase bets after a loss. |
| Noir | French term for Black Bet. |
| Non-value chip | A gaming chip for which the dollar value is determined by the amount of the buy-in and the amount of chips taken. This is usually established by the “Table Minimum Bet” amount displayed on the table. |
| Odd bet | A wager on odd numbers with a 1 to 1 payoff. |
| Orphans | French phrase. Common in European casinos. It’s a bet on three specific numbers 6, 34 and 17 that are neighbors on the wheel, but far apart on the layout. |
| Orphelins | French phrase. Common in European casinos. It’s a bet on a specific group of numbers on a section of the roulette wheel that are neighbors on the wheel, but apart on the layout. |
| Oustide bet | Bets on the non-number sections of the roulette layout. |
| Pair | French term for Even Bet. |
| Passe | French term for High Bet. |
| Positive progression | Any system of wagering where you increase bets after a win. |
| Premiere | French term for first and refers to the first group of 12 numbers in the Dozen Bet. |
| Quarter bet | A wager that one of four numbers will be hit on the next spin. |
| Red bet | A wager on the red color numbers with a payout of 1 to 1. |
| Reverse-LaBouchere betting system | A system of playing the LaBouchere System “in reverse”. That is, you cancel numbers after each loss and add them after each win. |
| Reverse-Martingale betting system | A system of playing the Martingale System “in reverse”. That is, you double-up after each win instead of after each loss. |
| Rouge | French term for Red Bet. |
| Section shooting | The act of placing the ball in a given section of the wheel. |
| Section slicing | Dividing the wheel into sections based upon which numbers have been hitting for the purpose of discovering biases. |
| Sixainne | French for Six line bet. |
| Six line bet | A bet on six numbers. |
| Split bet | A bet on two numbers. |
| Straight up bet | A bet on one single number. |
| Street bet | A bet on three numbers. |
| Surrender | The option whereby a casino only takes half a player’s losing wager on the even-money bets when the 0 or 00 hits. Few US casinos offer this. |
| Tiers du cylindre | French phrase. Common in European casinos. It’s a bet on a specific group of numbers on a section of the roulette wheel that are paired neighbors on the layout. |
| Transversale | French for Street bet. |
| Trio Bet | A bet on three numbers. |
| Visual wheel tracking | The ability to judge where the ball will land by sight. |
| Voisins du zero | French phrase. Common in European casinos. It’s a bet on a specific group of numbers on a section of the roulette wheel neighboring the zero. |
| Wheel-clocking | There are two main definitions for or types of Wheel-Clocking. One is to keep track of the results of roulette spins to ascertain patterns and possibility of wheel bias. The other is to visually or electronically clock the speed of the wheel in an effort to predict where the ball will land. |
| Wheel roller | A roulette dealer or croupier. |
| Zero | 0 number slot on the roulette wheel. |
