[per.for.mance] n (15c) 1 a: the execution of an action b: something accomplished: deed, feat
2: the fulfillment of a claim, promise, or request: implementation 3 a: the action of representing a character in a play b: a public presentation or exhibition "a benefit ~"
4. a: the ability to perform: efficiency b: the manner in which a mechanism performs "engine ~"
5: the manner of reacting to stimuli: behavior
6: the linguistic behavior of an individual: parole; also: the ability to speak a certain language--compare competence 3