warning device warning coloration • warning lever · · · Info · Definitions · Synonyms · Characters · · warning device · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) a device that signals the occurrence of some undesirable event. Synonyms: alarm, warning device, alarm system. · · Noun Definition 1 Synonyms · · · alarm · · Synonym 1 alarm system · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 n latin small letter n U+006E r latin small letter r U+0072 v latin small letter v U+0076 w latin small letter w U+0077