red light red-lidded • red-light district · · · Info · Definitions · Synonyms · Characters · · red light · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (noun) a cautionary sign of danger. Synonyms: red light, warning light. · · Noun Definition 1 (noun) the signal to stop. Synonyms: red light. · · Noun Definition 2 Synonyms · · · warning light · · Synonym 1 Characters · · space U+0020 d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C r latin small letter r U+0072 t latin small letter t U+0074