Meaning of 'stopper'

noun

blockage consisting of an object designed to fill a hole tightly

Synonyms: plug

noun

(bridge) a playing card with a value sufficiently high to insure taking a trick in a particular suit

Example: "if my partner has a spade stopper I can bid no trump"

noun

a remark to which there is no polite conversational reply

Synonyms: conversation stopper

noun

an act so striking or impressive that the show must be delayed until the audience quiets down

Synonyms: show-stopper

verb

close or secure with or as if with a stopper

Example: "They stoppered the wine bottle."

Synonyms: stopple