n. The act of performing or the condition of being performed; execution or completion of anything; a doing: as, the performance of works or of an undertaking; the performance of duty.n. That which is performed or accomplished; action; deed; thing done; a piece of work.n. A musical, dramatic, or other entertainment; the acting of a play, execution of vocal or instrumental music, exhibition of skill, etc., especially at a place of amusement.n. Synonyms Accomplishment, achievement, consummation. See perform.n. Exploit, feat.n. Production.