/ Dictionary / Index O outact: Meaning and Definition of Find definitions for: out•act Pronunciation: (out"akt'), [key] — v.t. to outdo in acting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. out outage Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language