A field between boundaries — the world, boundary
Learn all words containing 界 with spaced repetition
界 (kai) means "world, field, realm" in Japanese. It appears in JLPT level 1, 2, 3, 4, 5.
The Japanese character 界 has 9 strokes. Its radical is 田 (field).
The radical of 界 is 田 (field, Kangxi radical #102).