海 — sea

Grade 2かい, うみ

Radical ⽔ · radical 85 The building block this kanji is filed under

海 (readings: かい, うみ; Japanese kanji) means “sea”. It is a Grade 2 Kyōiku kanji, taught in year 2 of Japanese elementary school, and appears in words such as 海水 (seawater).

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What does 海 mean?

Full details, readings & example

Kanji	海
Meaning	sea
Readings	かい, うみ
Grade	Grade 2 (Easy)
Curriculum	Kyōiku kanji · Japanese elementary school
Example	海水 (seawater)

How to read 海

海 is read かい or うみ depending on the word.

Words with 海

海外かいがいnước ngoài
北海道ほっかいどうHokkaido
海水nước biển
海岸bờ biển
海峡eo biển
海藻rong biển

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Updated: 2026-08-09