/ Dictionary / Index O open communion: Meaning and Definition of Find definitions for: o'pen commun'ion Pronunciation: [key] — Eccles. Eccles. a communion service in which members of all denominations can participate. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. open cluster open convention Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language