The act of performing; the carrying into execution or action; execution; achievement; accomplishment; representation by action; as, the performance of an undertaking of a duty. Promises are not binding where the performance is impossible. (Paley)
2. That which is performed or accomplished; a thing done or carried through; an achievement; a deed; an act; a feat; especially, an action of an elaborate or public character. Her walking and other actual performances. His musical performances. .
Synonym: Completion, consummation, execution, accomplishment, achievement, production, work, act, action, deed, exploit, feat.