/ Dictionary / Index G Gregory XII: Meaning and Definition of Find definitions for: Gregory XII Pronunciation: [key] (Angelo Correr, Corrario, or Corraro) c1327–1417, Italian ecclesiastic: installed as pope in 1406 and resigned office in 1415. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Gregory XI Gregory XIII Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language