/ Dictionary / Index O Oreo: Meaning and Definition of Find definitions for: O•re•o Pronunciation: (ôr'ē-ō", ōr'-), [key] — pl. O•re•os. a black person who is regarded as having adopted the attitudes, values, and behavior thought to be characteristic of middle-class white society, often at the expense of his or her own heritage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oreo (Thesaurus) Orense Oreopithecus* Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language