JMdict: 2693550

樹洞 【じゅどう】

  1. [n] tree hollow; hollow in a tree
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
樹 Timber, Trees, Wood, Establish, Set Up ジュ き 6
洞 Den, Cave, Excavation ドウ ほら