voice box voice • voice communication · · · Info · Definitions · Synonyms · Characters · · voice box · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (noun) a cartilaginous structure at the top of the trachea; contains elastic vocal cords that are the source of the vocal tone in speech. Synonyms: larynx, voice box. · · Noun Definition 1 Synonyms · · · larynx · · Synonym 1 Characters · · space U+0020 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 o latin small letter o U+006F v latin small letter v U+0076 x latin small letter x U+0078