/ Dictionary / Index R R.C.: Meaning and Definition of Find definitions for: R.C. Pronunciation: [key] Red Cross. Reserve Corps. Roman Catholic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. R.B.I. R.C.A.F. Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language