/ Dictionary / Index O opine: Meaning and Definition of Find definitions for: o•pine Pronunciation: (ō-pīn'), [key] — o•pined, o•pin•ing. to hold or express an opinion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: opine (Thesaurus) opiatic opinicus 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