/ Dictionary / Index G Gregory I: Meaning and Definition of Find definitions for: Gregory I Pronunciation: [key] — Saint (“Gregory the Great”), a.d. c540–604, Italian ecclesiastic: pope 590–604. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Gregory Gregory II 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