n.
Pronunciation: - ˌ stä-p ə r
Function: noun
Date: 1926
1 : an act, song, or performer that wins applause so prolonged as to interrupt a performance
2 : something or someone exceptionally arresting or attractive <the gold crown was the showstopper of the exhibition>
3 : one that stops or could stop the progress, operation, or functioning of something
– show · stop · ping \ - ˌ stä-pi ŋ \ adjective