- an opening in which a player seeks to obtain some advantage by sacrificing a pawn or piece.
- any maneuver by which one seeks to gain an advantage.
- a remark made to open or redirect a conversation.
- an opening move in which a chessman, usually a pawn, is sacrificed to secure an advantageous position
- an opening comment, manoeuvre, etc, intended to secure an advantage or promote a point of view
