- Chess. the advance of a pawn, in its original move only, from its initial position on the second rank to the fourth without stopping at the intervening square.
- Checkers. the capturing of two of the opponent's checkers in two uninterrupted jumps, constituting a single move by one piece.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018