Dashboard Review Lessons

Learn

Kana Immersion Decks

Look up

Dictionary Grammar Themes Mining

Prove it

Games Exam Badges

Home Review Dictionary Lessons

v0.58What's newStudy levelSend feedbackReviewFriendsSettingsNotifications

© 2026 Nihongo CircleChangelog Genki companion Credits Terms Privacy Security

開口 (かいこう) — opening · Nihongo Circle

開口

かいこう

nountransitive 他動詞intransitive 自動詞

Meanings

1opening
2aperture (e.g. camera)
3opening one's mouth
4beginning to speak
5open
6broad

Your sentences

Kanji in this word

開Open, Unfold, Unseal12 strokes 口Mouth3 strokes

Full entry on Jisho