NOUN (1)

1. an extra or repeated performance; usually given in response to audience demand;


VERB (1)

1. request an encore, from a performer;

The Collaborative International Dictionary of English v.0.48:

Encore \En`core"\, adv. or interj. [F. The last part of the word
   is fr. L. hora hour. See Hour.]
   Once more; again; -- used by the auditors and spectators of
   plays, concerts, and other entertainments, to call for a
   repetition of a particular part.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Encore \En`core"\, n.
   A call or demand (as, by continued applause) for a
   repetition; as, the encores were numerous.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Encore \En`core"\, v. t. [imp. & p. p. Encored; p. pr. & vb.
   n. Encoring.]
   To call for a repetition or reappearance of; as, to encore a
   song or a singer.
   [1913 Webster]

         [Rebecca] insisted upon encoring one of the duets.
                                                  --Thackeray.
   [1913 Webster]

WordNet (r) 3.0 (2006):

encore
    n 1: an extra or repeated performance; usually given in response
         to audience demand
    v 1: request an encore, from a performer