/ Dictionary / Index C Celestine III: Meaning and Definition of Find definitions for: Celestine III Pronunciation: [key] — (Giacinto Bobone), died 1198, Italian ecclesiastic: pope 1191–98. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Celestine II Celestine IV Related Content Daily Word Quiz: sumptuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language