- backgammon⇄backgammon, noun, verb.
- backgammon⇄noun 1. a game for two played on a divided board with 12 spaces on each side. Each player has 15 pieces, which are moved according to the throw of the dice.
2. a victory won in this game before all the opponent's men are in play. - backgammon⇄v.t. to defeat at backgammon, especially by means of a gammon or backgammon.