/ Dictionary / Index G Gregory IX: Meaning and Definition of Find definitions for: Gregory IX Pronunciation: [key] (Ugolino di Segni or Ugolino of Anagni) c1143–1241, Italian ecclesiastic: pope 1227–41. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Gregory VIII Gregory X Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language