I. en ‧ core 1 /ˈɒŋkɔː $ ˈɑːŋkɔːr/ BrE AmE noun [countable]
an additional or repeated part of a performance, especially a musical one:
The band came back onstage for an encore.
II. encore 2 BrE AmE interjection
[ Date: 1700-1800 ; Language: French ; Origin: 'still, again' ]
said when you have enjoyed a musical performance very much and want the performer to sing or play more