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界
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).
What does 界 mean?
| Kanji | 界 |
|---|---|
| Meaning | world / boundary |
| Readings | かい |
| Grade | Grade 3 (Medium) |
| Curriculum | Kyōiku kanji · Japanese elementary school |
How to read 界
界 is read かい depending on the word.
Example words with 界
| Example | 世界 (world) |
|---|
Practice writing 界 — free
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Updated: 2026-07-14