/ Dictionary / Index A arbitrator: Meaning and Definition of Find definitions for: ar•bi•tra•tor Pronunciation: (är'bi-trā"tur), [key] — n. a person chosen to decide a dispute or settle differences, esp. one formally empowered to examine the facts and decide the issue. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: arbitrator (Thesaurus) arbitration bar arbitrement Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language