How to Spell performance

performance - noun

• The act of performing; carrying into execution or action; execution; achievement; accomplishment; representation by action.

• 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.

• A live show or concert.

• The amount of useful work accomplished estimated in terms of time needed, resources used, etc.