/ Dictionary / Index J Jim Crow law: Meaning and Definition of Find definitions for: Jim' Crow' law" Pronunciation: [key] — U.S. Hist. U.S. Hist. any state law discriminating against black persons. Cf. Black Code. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Jim Crowism jim-dandy 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