A brief extra performance, done after the main performance is complete.

A call or demand (as by continued applause) for a repeat performance.

(transitive) To call for an extra performance or repetition of, or by.

(intransitive) To call for an encore.

(intransitive) To perform an encore.

(conjunctive, hapax) (Can we verify(+) this sense?) In addition to what has been said; furthermore; additionally.

(said by audience members after a performance) Please perform again!