put into service; make work or employ for a particular purpose or for its inherent or natural purpose

a preset plan of action in team sports

change a pawn for a better piece by advancing it to the eighth row, or change a checker piece for a more valuable piece by moving it to the row closest to your opponent

contend against an opponent in a sport, game, or battle

put (a card or piece) into play during a game, or act strategically as if in a card game