Jōyō kanji, Taught in junior high
Stroke count: 13
Meaning: cavern
Kunyomi: いわや いはや あな
Onyomi: クツ コツ
Composition: 穴 屈
Radical: 穴
Meaning: cave
窟院 (クツイン) cave temple
巣窟 (ソウクツ) den, haunt, hangout, nest, lair
宝窟 (ホウクツ) treasure mine
岩屋 (いわや) cavern, grotto