definition of
stopper

[1] #1 stopper n. [show-stopper, showstopper] an act so striking or impressive that the show must be delayed until the audience quiets down. wn

[2] #2 stopper v. [stopple] close or secure with or as if with a stopper; "She stoppered the wine bottle"; "The mothers stoppered their babies' mouths with pacifiers". wn

[3] #3 stopper n. [conversation stopper] a remark to which there is no polite conversational reply. wn

[4] #4 stopper n. (bridge) a playing card with a value sufficiently high to insure taking a trick in a particular suit; "if my partner has a spade stopper I can bid no trump". wn

[5] #5 stopper n. [plug, stopple] blockage consisting of an object designed to fill a hole tightly. wn