/ Dictionary / Index I intercommunion: Meaning and Definition of Find definitions for: in•ter•com•mun•ion Pronunciation: (in"tur-ku-myn'yun), [key] — n. mutual communion, association, or relations. a communion service among members of different denominations. Cf. close communion, open communion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: intercommunion (Thesaurus) intercommunication system intercommunity Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language