/ Dictionary / Index J JRC: Meaning and Definition of Find definitions for: JRC Pronunciation: [key] Junior Red Cross. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Jr. J.S.D. Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language