/ Dictionary / Index A arbiter: Meaning and Definition of Find definitions for: ar•bi•ter Pronunciation: (är'bi-tur), [key] — n. a person empowered to decide matters at issue; judge; umpire. a person who has the sole or absolute power of judging or determining. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: arbiter (Thesaurus) Arbil arbiter elegantiae* Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language