/ Dictionary / Index R Reuben sandwich: Meaning and Definition of Find definitions for: Reu'ben sand'wich Pronunciation: [key] a grilled sandwich of corned beef, Swiss cheese, and sauerkraut on rye bread. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Reubenite Reuchlin Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language