red line red light • red maids · · · Info · Definitions · Characters · · red line · · Text Common · · Latin · · Scripts 8 · · Length 2 · · Syllables Definitions · · · (noun) a line that is colored red and that bisects an ice hockey rink. Synonyms: red line. · · Noun Definition 1 (verb) discriminate in selling or renting housing in certain areas of a neighborhood. Synonyms: redline. · · Verb Definition 1 Characters · · space U+0020 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072