/ Dictionary / Index C Celestine I: Meaning and Definition of Find definitions for: Cel•es•tine I Pronunciation: (sel'u-stīn", si-les'tin, -tīn), [key] died a.d. 432, Italian ecclesiastic: pope 422–432. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. celestial sphere Celestine II Related Content Daily Word Quiz: wary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language