JMdict: 1856910

穴が開く 【あながあく】

  1. [exp,v5k] to have a hole; to be pierced (with a hole)
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
穴 Hole, Aperture, Slit, Cave, Den ケツ あな
開 Open, Unfold, Unseal カイ ひら.く, ひら.き, -びら.き, ひら.ける, あ.く, あ.ける