Gambling glossary
Plain-English definitions used across our guides and calculators.
- expected value
- The average amount you win or lose per bet if the same wager were repeated many times at the same odds and true win probability.
- house edge
- The casino's average mathematical advantage on a bet, usually shown as a percentage of the stake over the long run.
- vig
- The bookmaker's margin built into a market's odds (also called juice or overround). Lower vig means prices closer to fair.
- wagering requirement
- The multiple of a bonus (and sometimes deposit) you must bet before winnings from that bonus can be withdrawn. Always check game weighting.