Definition of: backgammon

(bak′gam′ən, bak′gam′ən) noun
1. A game played by two persons, on a special board, the moves of the pieces being determined by dice throws: formerly called tables.
2. A victory in this game before the defeated player advances all his men beyond the first six points, resulting in a tripled score for the victor.
—v.t. To win a backgammon from. [ME back gamen back game; because sometimes the pieces must go back to the start]