Main entry: stopper, stopple, plug
Definition: blockage consisting of an object designed to fill a hole tightly
Main entry: stopper
Definition: (bridge) a playing card with a value sufficiently high to insure taking a trick in a particular suit
Usage: if my partner has a spade stopper I can bid no trump
Main entry: conversation stopper, stopper
Definition: a remark to which there is no polite conversational reply
Main entry: show-stopper, showstopper, stopper
Definition: an act so striking or impressive that the show must be delayed until the audience quiets down
Definition: close or secure with or as if with a stopper
Usage: She stoppered the wine bottle; The mothers stoppered their babies' mouths with pacifiers