motor horn motor home • motor hotel · · · Info · Definitions · Synonyms · Characters · · motor horn · · Text Common · · Latin · · Scripts 10 · · Length 3 · · Syllables Definitions · · · (noun) a device on an automobile for making a warning noise. Synonyms: automobile horn, car horn, motor horn, horn, hooter. · · Noun Definition 1 Synonyms · · · automobile horn · · Synonym 1 car horn · · Synonym 2 horn · · Synonym 3 hooter · · Synonym 4 Characters · · space U+0020 h latin small letter h U+0068 m latin small letter m U+006D 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