/ Dictionary / Index E ecumenical patriarch: Meaning and Definition of Find definitions for: ecumen'ical pa'triarch Pronunciation: [key] the patriarch of Constantinople, regarded as the highest dignitary of the Greek Orthodox Church. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ecumenical movement ecumenicism Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language