/ Thesaurus / C Synonyms of color line Find synonyms for: Noun1. color bar, colour bar, color line, colour line, Jim Crow, ideological barrierusage: barrier preventing blacks from participating in various activities with whitesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language