界 — world / boundary

Grade 3かい

Radical ⽥ · radical 102 The building block this kanji is filed under

界 (readings: かい; Japanese kanji) means “world / boundary”. It is a Grade 3 Kyōiku kanji, taught in year 3 of Japanese elementary school, and appears in words such as 世界 (world).

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What does 界 mean?

Full details, readings & example

Kanji	界
Meaning	world / boundary
Readings	かい
Grade	Grade 3 (Medium)
Curriculum	Kyōiku kanji · Japanese elementary school
Example	世界 (world)

How to read 界

界 is read かい depending on the word.

Words with 界

限界げんかいgiới hạn
世界せかいthế giới
世界中せかいじゅうkhắp thế giới
世界一せかいいちnhất thế giới
世界会議せかいかいぎhội nghị thế giới
世界各国せかいかっこくcác nước trên thế giới
世界大会せかいたいかいgiải đấu thế giới

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Updated: 2026-08-09