Read the dictionary definition of stopper. All definitions for this word.
1. blockage consisting of an object designed to fill a hole tightly
2. (bridge) a playing card with a value sufficiently high to insure taking a trick in a particular suit
1. if my partner has a spade stopper I can bid no trump
3. a remark to which there is no polite conversational reply
4. an act so striking or impressive that the show must be delayed until the audience quiets down
5. close or secure with or as if with a stopper
1. She stoppered the wine bottle
2. The mothers stoppered their babies' mouths with pacifiers