/ Dictionary / Index R roble: Meaning and Definition of Find definitions for: ro•ble Pronunciation: (rō'blā), [key] — n. a Californian white oak, Quercus lobata, having a short trunk and large, spreading branches. any of several other trees, esp. of the oak and beech families. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: roble (Thesaurus) Robin's plantain Roboam Related Content Daily Word Quiz: vernacular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language