/ Dictionary / Index R RJ: Meaning and Definition of Find definitions for: RJ Pronunciation: [key] — Mil. Mil. road junction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Rizzio R.L.D. Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language