/ Dictionary / Index O ogdoad: Meaning and Definition of Find definitions for: og•do•ad Pronunciation: (og'dō-ad"), [key] — n. the number eight. a group of eight. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ogdoad (Thesaurus) Ogdensburg ogee Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language