かいこうおん
Meanings
Noun
1. (of Chinese) pronunciation of kanji without a medial between the initial consonant and center vowel
2. (of Japanese) the long "o" vowel arising from combination of the "a" and "u" sounds
Pitch accent
いこ
うおん
Composed of
opening; aperture (e.g. camera); opening one's mouth; beginning to speak; open; broad
sound; noise; note; Chinese-derived character reading