/ Dictionary / Index M M.C.J.: Meaning and Definition of Find definitions for: M.C.J. Pronunciation: [key] Master of Comparative Jurisprudence. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. McIntyre Mc Job Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language