/ Dictionary / Index R rebar: Meaning and Definition of Find definitions for: re•bar Pronunciation: (rē'bär"), [key] — n. Building Trades Informal. a steel bar or rod used to reinforce concrete. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rebab rebarbative Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language