/ Dictionary / Index P prior: Meaning and Definition of Find definitions for: pri•or Pronunciation: (prī'ur), [key] —n. a prior conviction. pri•or Pronunciation: (prī'ur), [key] an officer in a monastic order or religious house, sometimes next in rank below an abbot. a chief magistrate, as in the medieval republic of Florence. Pri•or Pronunciation: (prī'ur), [key] 1664–1721, English poet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: prior (Thesaurus) prion priorate Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language