/ Dictionary / Index R Reuben: Meaning and Definition of Find definitions for: Reu•ben Pronunciation: (r'bun), [key] — n. the eldest son of Jacob and Leah. Gen. 29, 30. one of the 12 tribes of Israel, the tribe traditionally descended from him. See a male given name: from a Hebrew word meaning “behold a son.” Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: reuben (Thesaurus) Retz Reubenite Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language