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Betting Terms Explained

Ninety terms in plain English, from accumulator to void — the glossary we send new readers to first.

Ellis HartnollHead of Testing25 May 202614 min readUpdated 25 May 2026
Betting Terms Explained
Most of the vocabulary is older than the internet. The meanings have not changed.

Betting has a vocabulary that assumes you already know it. This is the short version of our ninety-term glossary — the words that appear on a slip, in a set of terms, or in a review on this site, explained once.

Prices and markets

  • Odds, price — the same thing. What the bookmaker will pay if you are right, expressed in decimal, fractional or American format.
  • Implied probability — one divided by the decimal price. What the price says the chance is.
  • Overround, margin, vig, juice — the amount by which a market’s implied probabilities exceed 100%. The bookmaker’s built-in edge.
  • Market — one question about an event, with a price on each answer. Match result, total goals and first scorer are three markets on the same match.
  • Line — the number a handicap or total is set at: −1.5, 2.5 goals, 228.5 points.
  • Closing line — the final price before the event starts. The market’s best estimate.

Bets and settlement

  • Single, double, accumulator — one selection, two, or several combined so every one must win.
  • Each-way — two bets of equal stake: one to win and one to place. The place part pays a fraction of the win price.
  • Push — a bet where the result lands exactly on the line. Stakes are returned.
  • Void — a bet cancelled because the event did not happen as the rules require. Stakes are returned.
  • Cash-out — an offer to settle a bet before the event ends, at a price the bookmaker sets. It carries its own margin.
  • Settled — decided and paid. Main markets settle within minutes; some specials wait for official statistics.

Accounts and offers

  • Qualifying bet — the bet you must place, at minimum odds, to unlock a welcome offer.
  • Free bet, bonus funds — a free bet returns winnings only; bonus funds usually carry turnover requirements before withdrawal.
  • Wagering, turnover — how many times a bonus must be staked before it can be withdrawn.
  • Stake factoring, restriction — a limit on how much a specific account can bet, applied per market, usually after winning.
  • Best odds guaranteed — in racing, being paid at the starting price if it is bigger than the price you took.

The full glossary on the guides page lists all ninety, and every term links to the guide that explains it properly.

Key takeaways

  • Overround, vig and margin are the same thing: the bookmaker’s built-in edge.
  • A push returns your stake; a void does too, but for a different reason.
  • Each-way is two bets, not one.
  • Cash-out is a price the bookmaker offers for your position, with its own margin inside.
TagsFirst betGlossaryMarkets
Written byEllis HartnollHead of Testing · 17 guides published

Ellis has priced sports markets for two bookmakers and now runs Oddsmark’s testing programme, measuring margins across forty markets a month. He writes about pricing, market rules and the arithmetic bettors are rarely shown.

All work by Ellis Hartnoll

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A 3.4% average football margin — the lowest of the fifteen bookmakers we measure each month.

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Responsible gambling

Understanding margins makes betting cheaper, not profitable. Set a deposit limit before you open an account, never chase losses, and treat every stake as spent the moment it is placed.