Online Roulette Glossary

Learn Important Online Roulette Terms

Feel Confident at the Roulette Wheel

When it comes to online casino games, roulette is one of the easiest to play. Bets are pretty straightforward and table layouts are generally the same. You'll want to take some time to learn about the possible placements for your wagers. Then you can begin to understand the odds and payouts.

Knowing the terminology and odds will help you to become a better roulette player.

bet365 Casino

Get a Deposit Match Bonus up to $1,000 + up to 500 Spins!

Wide Range of Casino Games
Generous Free Spins Welcome Bonus
No Wagering Requirements

ACTION

Promo Code

Go to bet365 Casino

Fanatics Casino

Get up to $1,000 Back in Casino Credit!

Multiple Welcome Bonuses
Fanatics Exclusives
Optimized Mobile Play

No Code Needed

Go to Fanatics Casino

BetMGM Casino

Get a 100% Deposit Match up to $2500 + 100 Bonus Spins!

Multiple No Deposit Bonuses
Lucrative Progressive Jackpots
Fast Payout Speeds

ACTION2500

Promo Code

Go to BetMGM Casino

Caesars Palace Online Casino

Get $10 on Registration + 100% Deposit Match up to $1000!

Exceptional Rewards Program
Several Live Casino Games
Intuitive Casino App

ACTIONLAUNCH

Promo Code

Go to Caesars Palace Online Casino

Borgata Casino

Get up to a $1,000 Deposit Match + $20 in Bet Credits!

2,000+ Casino Games
100% Deposit Match Bonus
Access to BetMGM Rewards

ACTIONBCASINO

Promo Code

Go to Borgata Casino

Bally Bet Sports & Casino

Get up to $100 Back in Bonus Money + $50 Bonus on Your First Deposit!

Slots, Table Games, Live Dealer Games
Several Video Poker Options
Intuitive, User-Friendly App

ACTION50

Promo Code

Go to Bally Bet Sports & Casino

PartyCasino

Get a 200% Deposit Match up to $100 in Bonus Dollars!

Slots, Table Games, Live Dealer
Many Exclusive Games
Welcome Bonus & Ongoing Promos

ACTIONPCASINO

Promo Code

Go to PartyCasino

FanDuel Casino

Deposit $10, Get 500 Bonus Spins & $40 In Casino Bonus!

Good Selection of Casino Games
Solid Welcome Offer
High Quality Mobile App

No Code Needed

Go to FanDuel Casino

Roulette has been a beloved casino game for centuries and remains just as popular in online casinos as it is in physical venues. To play confidently, it's important to understand key roulette terms, whether distinguishing between “inside bets” and “outside bets” or knowing the differences between American and European roulette wheels.

This glossary will walk you through essential roulette terminology and also recommend trusted online casinos where you can apply your newfound knowledge.

Here are our top 5 recommended online casinos where you can enjoy playing roulette.

1,500+ Games Including Live Casino Titles

📖 Suggested Reading	bet365 Casino Bonus Code (Review)
⭐ Promo Code	ACTION
🎁 Welcome Bonus	Get a Deposit Match Bonus up to $1,000 + up to 500 Spins!
✅ Available States	NJ & PA

Bet365 is one of the most recognized global online casinos, offering multiple versions of roulette including European, American, and live dealer options. It’s especially strong for players who enjoy both sports betting and casino play. ��

Pros

Wide Selection of Roulette Games
Globally Recognized Brand

Cons

Some Users Find Interface Crowded

New and eligible customers only, 21+. NJ and PA users only. Gambling Problem? Call 1-800-GAMBLER. To be eligible for the Deposit Match offer deposit a minimum of $10 to Casino at bet365, up to a maximum of $1,000. No wagering requirement attached to the Spins and any winnings accrued can be withdrawn at your discretion. You will be eligible for up to 10 Spins reveals in total within 20 days of your first claim, but must wait at least 24 hours between each. You can win up to a maximum of 500 Spins. Max. prize, time limits, game restrictions and T&Cs apply.

Generous Free Spins Offer

📖 Suggested Reading	Fanatics Casino Promo Code (Review)
🎁 Welcome Bonus Offer	Get up to 1000 Free Spins on Cops n Robbers!
💰 Alternative Bonus Offer	Get up to $1,000 Back in Casino Credit!
✅ Available States	MI, NJ, PA & WV

Fanatics is a well known brand in the online casino world, and has quickly built a name with a clean design and excellent bonuses. Its roulette section continues to grow, making it an appealing option for players who want something fresh.

Pros

Modern Platform With Smooth Gameplay
Frequent Promotions

Cons

Still Growing Its Roulette Library

New customers in MI/NJ/PA/WV. Casino Credit will equal cumulative losses incurred in the first 24 hours of establishing an Account from cash wagers placed on eligible games in the Fanatics Casino, up to a max of $1,000 in Casino Credit. Your 24 hours begins at sign up. Casino Credit can be used on any games in the Fanatics Casino and expires 7 days from issuance. See full Promo Terms in the Fanatics Sportsbook & Casino apps. New customers in MI/NJ/PA only. Must place $10+ in cumulative cash wagers on any Fanatics Casino games within 7 days of registering to receive 200 Free Spins each day for 5 straight days to use on the slots game Cops n Robbers. MUST OPT-IN EACH DAY TO CLAIM FREE SPINS. Free Spins expire at 11:59pm ET each day. See full Promo Terms in the Fanatics Sportsbook & Casino app.

Millions in Progressive Jackpots Awarded

📖 Suggested Reading	BetMGM Casino Bonus Code (Review)
⭐ Bonus Code	ACTION2500
🎁 Welcome Bonus (MI, NJ, WV & PA)	Get a 100% Deposit Match up to $2500 + 100 Bonus Spins!
💰 Alternative Welcome Bonus (WV)	Deposit Match up to $2500 + $50 on the House + 50 Bonus Spins!
✅ Available States	MI, NJ, PA & WV

BetMGM is a market leader in the U.S., with one of the biggest selections of online roulette games available. From standard tables to live dealer roulette, it covers every style of play.

Pros

Huge Variety of Roulette Titles
Strong Loyalty Rewards

Cons

High Wagering Requirements

Must be 21+. MI, NJ, PA and WV only. Visit www.1800gambler.net (WV). New Customers Only. Please Gamble Responsibly. Visit betmgm.com for terms and conditions. All promotions are subject to qualification and eligibility requirements. Rewards issued as non-withdrawable site credit/bonus bets unless otherwise provided in the applicable terms. Rewards subject to expiry.

Excellent Caesars Rewards Program

📖 Suggested Reading	Caesars Palace Online Casino Promo Code (Review)
⭐Promo Code	ACTIONLAUNCH
🎁Welcome Bonus	Get $10 on Registration + 100% Deposit Match up to $1000!
✅ Available States	MI, NJ, PA & WV

Caesars Palace brings the legendary Las Vegas brand online, giving roulette players access to both classic tables and live versions. Its tight integration with the Caesars Rewards program makes it ideal for frequent players.

Pros

Iconic Brand With Valuable Rewards Program
Multiple Welcome Promotions

Cons

Slow Customer Support

Must be 21+ and physically present in MI, NJ, PA and WV only. New users and first deposit only. Wager $25+ to receive 2,500 Reward Credits. Max deposit match bonus of $1,000. Minimum wagering within 7 days required to unlock bonuses. NJ bonuses apply to slot play only. Full terms and wagering requirements at Caesarspalaceonline.com/promos. Void where prohibited. Know When To Stop Before You Start.® Gambling Problem? NJ, MI, WV, PA (Affiliated with Harrah's Philadelphia): If you or someone you know has a gambling problem, crisis counseling and referral services can be accessed by calling 1-800-GAMBLER (1-800-426-2537) or WV: Visit 1800gambler.net Must be 21+ and physically present in MI, NJ, PA and WV only. New users and first deposit only. Wager $25+ to receive 2,500 Reward Credits. Max deposit match bonus of $1,000. Minimum wagering within 7 days required to unlock bonuses. NJ bonuses apply to slot play only. Full terms and wagering requirements at Caesarspalaceonline.com/promos. Void where prohibited. Know When To Stop Before You Start.® Gambling Problem? NJ, MI, WV, PA (Affiliated with Harrah's Philadelphia): If you or someone you know has a gambling problem, crisis counseling and referral services can be accessed by calling 1-800-GAMBLER (1-800-426-2537) or WV: Visit 1800gambler.net

Integrated MGM Rewards

📖 Suggested Reading	Borgata Casino Bonus Code (Review)
⭐Bonus Code	ACTIONBCASINO
🎁Welcome Bonus	Get up to a $1,000 Deposit Match + $20 in Bet Credits!
✅ Available States	NJ, PA

Borgata is a long-standing East Coast casino name that translates well to its online platform. It’s best known for smooth mobile play and high-quality live dealer roulette.

Pros

Excellent Live Dealer Library
Great Mobile App

Cons

Limited Availability

New Borgata Casino accounts only. To be eligible, players must be 21 years of age or older and playing within the state of New Jersey or Pennsylvania. Gambling Problem? Call 1-800-GAMBLER. Full T&C apply.

Whether you're just learning how to play online roulette, or consider yourself a high roller, it's important to fully understand roulette terminology. Mastering roulette terminology can significantly improve your chances of winning in online Roulette. This extensive A-Z guide covers all the key terms you'll encounter at the table, equipping you with the knowledge to play confidently and strategically.

📕 A-F

📜 Term	📖 Definition
🎬 Action	The amount of money you plan to wager in any given session. It may also refer to bets in play on the table.
🇺🇸 American Roulette (American Wheel)	A version of roulette with 38 numbered slots. That gives it a house edge of over 5%. The spinning wheel contains red and black numbers from 1 to 36, plus 0 and 00 marked in green.
🔄 Backtrack/Ball-Track	This is the outer rim of the roulette wheel where the ball gets spun each round.
🧺 Basket Bet	A three-number wager in American Roulette on 0-1-2, 0-00-2, or 00-2-3.
⚫ Black Bet	An outside bet that the next number will be black. This bet pays 1 to 1.
🔻 Bottom Track	The inner part of the roulette wheel where the ball falls before it lands in a numbered slot.
➕ Carre	French word for a corner bet. (See: Corner Bet.)
🏓 Choppy Game	The player and casino go back and forth between winning without any streaks.
📊 Column Bet	An outside bet on one of the three 12-numbered columns (1st, 2nd, and 3rd). If any one of those 12 numbers hit, you'll win. This bet pays 2 to 1.
🔀 Combination Bet	A bet on any combination of two or more numbers at one time.
🔲 Corner Bet	An inside bet on four numbers at once. Place your bet at any intersection of four numbers. If any of those four numbers hit, you'll win. This bet pays 8 to 1.
🔢 Dozen Bet	An outside bet on 12 numbers at once. Options include: 1-12, 13-24, and 25-36. This bet pays 2 to 1.
0️⃣0️⃣ Double Zero	The numbered slot of 00 on an American Roulette wheel.
🔄 Double-Up Betting	Betting strategy where you double your previous wager after a loss.
🎯 En Plein	French term for a Straight Up Bet.
🇪🇺 European Roulette (European Wheel)	A version of roulette with 37 numbered slots. The house edge is under 3%. The spinning wheel contains red and black numbers from 1 to 36, plus a 0 marked in green.
🟰 Even Bet	An outside bet that the next number will be even. This bet pays 1 to 1.
⚖️ Even Money	Any wager with 1 to 1 odds. (Black/Red, Even/Odd, High/Low.)
⬆️ Fibonacci Betting System	The same as Double-Up. A betting strategy whereby you increase your bet amount after a loss.
5️⃣ Five-Number Bet	A wager on 0-00-1-2-3 in American Roulette. Also known as a Top-Line Bet. This bet pays 6 to 1. (Sometimes referred to as the worst bet on the American Wheel.)

📗 G-M

📜 Term	📖 Definition
🔥 Golden Numbers	Numbers that keep on winning within a short timeframe.
🤔 Gambler's Fallacy	The mistaken belief that previous turns can influence the upcoming turn. For example, because 10 hasn't spun recently, it's bound to land soon.
🔼 High Bet	An outside bet on the high numbers (19-36) that pays even money.
🏠 House Edge	The advantage the casino has over the player on a percentage basis. Learn more about house edge & RTP.
🔢 Impair	French word for Odd Bet.
🎯 Inside Bet	Any wager on the numbers inside the box of a roulette table layout. These bets offer the highest payouts. Some casinos might offer smaller wager limits for inside bets.
💠 Jeton	The French term used in roulette to refer to a “chip.”
💸 John	In land-based casinos, this term refers to a player who is known for tipping generously.
📐 Layout	The design of the table. Depending on the roulette game you choose, the layout may be different.
6️⃣ Line Bet	A six-number inside bet on any two rows of three numbers. This bet pays 5 to 1.
🔽 Low Bet	An outside bet on the low numbers (1-18). This bet pays even money.
🔽 Manque	French word for Low Bet.
📈 Martingale Betting System	A strategy akin to Double-Up and Fibonacci betting systems. You increase your bet amounts after a loss.

📘 N-R

📜 Term	📖 Definition
📉 Negative Progression	Increasing your bets after a loss.
⚫️ Noir	French term for Black Bet.
🔢 Odd Bet	An outside bet that the next number will be odd. Pays even money.
🌀 Orphans	A bet on 6, 17, and 34. These numbers are next to each other on the European spinning wheel but far apart on the table layout.
🔲 Outside Bets	Any bets outside the individual box numbers. (Black/Red, Column, Dozen, Even/Odd, High/Low.) These bets pay 2 to 1 and even money. They offer the best chances to win.
⚖️ Pair	French word for Even Bet.
🔝 Parlay	To double your wager amount after a win.
🔼 Passe	French word for High Bet.
🔸 Pockets	Small areas on the spinning wheel where the ball might land for each number.
📈 Positive Progression	Increasing your bets after a win.
4️⃣ Quarter Bet	Another way of referring to a bet on four inside numbers at once. (Corner, Square.)
💵 Quarters	This term typically refers to green chips valued at $25.
🔴 Red Bet	An outside bet that the next number will turn out red. Pays even money.
🇫🇷 Rouge	French word for Red Bet.
🔥 Run	Also called a "streak," this term refers to consecutive outcomes occurring one after another, such as landing six blacks in a row.

📙 S-Z

📜 Term	📖 Definition
🔗 Section Slicing	Betting strategy based on whatever section of the wheel keeps winning.
6️⃣ Six Line Bet	Another way of referring to a Line Bet. Betting on two adjacent rows of three numbers at once.
✂️ Split Bet	An inside bet on two adjacent numbers at once. This bet pays 17 to 1.
🎯 Straight Bet	An inside bet on one number that pays 35 to 1 -- the best payout in the game.
🚦 Street Bet	An inside bet on one row of three numbers. The wager gets placed at the bottom of the row. This bet pays 11 to 1. (Combination of two Street Bets equals a Line Bet or Six Line Bet.)
📐 Table Layout	May refer to American, European, or French roulette. A Classic Roulette option may also be available.
📊 Tracking Board	Board that shows the latest result along with the previous ten.
➖ Transversale	French word for Street Bet.
🔺 Trio Bet	Another way of referring to a Street Bet.
👀 Visual Wheel Tracking	Refers to players who observe the ball and wheel closely to predict where the ball will land.
0️⃣ Voisins du Zero	French term used in European and French Roulette variants to describe the neighbors of 0, covering numbers 22 to 25 clockwise.
🔄 Wheel	The roulette spinning wheel.
⏱️ Wheel Clocking	Technique used to track outcomes of a specific roulette wheel to identify a pattern or bias.
0️⃣ Zero	The 0 pocket marked in green on the roulette wheel.

Looking to learn about poker-specific terms? Then check out our poker glossary instead!

We suggest checking our online casino legalization tracker to confirm whether casino gaming is legal in your state. Understanding roulette odds is vital for increasing your winning chances. Read the T&Cs before placing bets.