/ ˈɒŋkɔː(r); NAmE ˈɑːŋ-/ noun , exclamation
■ noun
an extra short performance given at the end of a concert or other performance; a request for this made by an audience calling out :
She played a Chopin waltz as an encore.
The group got three encores.
■ exclamation
an audience calls out encore! at the end of a concert to ask the performer to play or sing another piece of music
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WORD ORIGIN
early 18th cent.: French , literally still, again .