/ Dictionary / Index R red oak: Meaning and Definition of Find definitions for: red' oak' Pronunciation: [key] any of several oak trees, as Quercus rubra, or Q. falcata, of North America. the hard, cross-grained wood of these trees. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. redo red ocher Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language