JMdict: 1453870

洞穴 【ほらあな】

  1. [n] cave; cavern; den; grotto
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
洞 Den, Cave, Excavation ドウ ほら
穴 Hole, Aperture, Slit, Cave, Den ケツ あな