揚よう音おんようおんMeanings1nounacute accent; rising toneLinguistic term for an acute accent or rising pitch, used in phonetics and phonology. Not an everyday word.日本にほん語ごのアクセント記き号ごうで、揚よう音おんは音おとの高たかさが上あがることを示しめす。In Japanese accent notation, 揚音 indicates a rise in pitch.