Quick answer
口 is the kanji for "Mouth". The most common reading is くち (kuchi). Mnemonics and example sentences are listed below.
Meaning
Mouth
Also : Opening · Entrance · Speech
Learn 口 with SRS
Free to start — no credit card. Track every review with spaced repetition.
Readings
kun = Japanese reading · on = Chinese reading
Practice writing
Trace the kanji stroke by stroke with a visual guide.
Stroke Order
3 strokes
Radicals
Memory Aid
The kanji 口 represents 'MOUTH'. The mouth radical (口) often relates to speaking, eating, or openings.
On-reading: こう — sounds like 'ko' in 'coat'. Kun-reading: くち.
Example Sentences
口を大きく開けてください。
くちをおおきくあけてください。
Please open your mouth wide.
出口はどこですか？
でぐちはどこですか？
Where is the exit?
Vocabulary using 口
Grammar to study at this level
Last updated Jun 18, 2026
Learn 口 with Spaced Repetition
InitialJ uses scientifically proven SRS to help you memorize kanji and vocabulary for the JLPT. N5 is free forever; no credit card required.