horn button horn bug • horn chestnut · · · Info · Definitions · Characters · · horn button · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) a button that you press to activate the horn of an automobile. Synonyms: horn button. · · Noun Definition 1 Characters · · space U+0020 b latin small letter b U+0062 h latin small letter h U+0068 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075