Functioning
Part of speech: adjective
Definition: working
Part of speech: noun
Definition: action of the verb to function The manner in something functions; the workings
Part of speech: verb
Definition: To have a function.
Performance
Part of speech: noun
Definition: The act of performing; carrying into execution or action; execution; achievement; accomplishment; representation by action; as, the performance of an undertaking of a duty.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.In Computer science: The amount of useful work accomplished by a computer system compared to the time and resources used. Better Performance means more work accomplished in shorter time and/or using less resources
Example sentence: Confidence... thrives on honesty, on honor, on the sacredness of obligations, on faithful protection and on unselfish performance. Without them it cannot live.