Action - A sports betting wager of any kind, a bet.

Added Game - For sports betting, a game not part of Las Vegas regular rotation posted as an accommodation to customers.

Angles Using key factors from previous events to predict the results for future outcomes.

ATS - "Against the spread," taking points rather than betting with the spread and laying points in sports betting.

Bet To risk something on the outcome of an event

Book - In sports gambling a Book is an establishment that accepts bets on the outcome of horse racing and sporting events.

Bookie - In sports wagering a person who accepts bets.

Bookmaker see bookie