How do you spell Encore

Available Definitions:
1)  adv. / interj. - Once more; again; -- used by the auditors and spectators of plays, concerts, and other entertainments, to call for a repetition of a particular part.
2)  n. - A call or demand (as, by continued applause) for a repetition; as, the encores were numerous.
3)  v. t. - To call for a repetition or reappearance of; as, to encore a song or a singer.