subtonic subtone • subtopia · · · Info · Definitions · Synonyms · Characters · · subtonic · · Text Latin · · Script 8 · · Length 3 · · Syllables Definitions · · · (noun) (music) the seventh note of the diatonic scale. Synonyms: leading tone. · · Noun Definition 1 Synonyms · · · leading tone · · Synonym 1 Characters · · b latin small letter b U+0062 c latin small letter c U+0063 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075