井 — Well / Well Crib / Town / Community

Master (高手)せい, しょう, い

Radical ⼆ · radical 7 The building block this kanji is filed under

井 (readings: せい, しょう, い; Japanese kanji) means “Well / Well Crib / Town / Community”. It is a Jōyō kanji taught in Japanese secondary school (junior & senior high) — the 高手 · Master tier beyond the grade 1–6 Kyōiku set, and appears in words such as 井戸 (water well).

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What does 井 mean?

Full details, readings & example

Kanji	井
Meaning	Well / Well Crib / Town / Community
Readings	せい, しょう, い
Grade	Master (高手 · secondary school)
Curriculum	Jōyō kanji · Japanese secondary school (JLPT N1–N2)
Example	井戸 (water well)

How to read 井

井 is read せい or しょう or い depending on the word.

Words with 井

井戸giếng nước

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Updated: 2026-07-22