/ Dictionary / Index R R.C.M.P.: Meaning and Definition of Find definitions for: R.C.M.P. Pronunciation: [key] Royal Canadian Mounted Police. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rcmp (Thesaurus) rcd. R.C.N. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language