bullhorn bullhoof • Bullidae · · · Info · Definitions · Synonyms · Characters · · bullhorn · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a portable loudspeaker with built-in microphone and amplifier. Synonyms: loud hailer, loud-hailer. · · Noun Definition 1 Synonyms · · · loud hailer · · Synonym 1 loud-hailer · · Synonym 2 Characters · · b latin small letter b U+0062 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 u latin small letter u U+0075