/ Dictionary / Index O OPEC: Meaning and Definition of Find definitions for: OPEC Pronunciation: (ō'pek), [key] — n. an organization founded in 1960 of nations that export large amounts of petroleum: formed to establish oil-exporting policies and set prices. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: opec (Thesaurus) ope Opechancanough Related Content Daily Word Quiz: designate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language