quarter-tone quarter tone • quartervine · · · Info · Definitions · Synonyms · Characters · · quarter-tone · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) half of a semitone. Synonyms: quarter tone. · · Noun Definition 1 Synonyms · · · quarter tone · · Synonym 1 Characters · · - hyphen-minus U+002D a latin small letter a U+0061 e latin small letter e U+0065 n latin small letter n U+006E o latin small letter o U+006F q latin small letter q U+0071 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075