/ Dictionary / Index O o'er: Meaning and Definition of Find definitions for: o'er Pronunciation: (ôr, ōr), [key] — prep., adv. Literary. over. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: o'er (Thesaurus) OEO oersted 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