JLPT N1
洞
洞 (ほら) is a natural hollow or cavity. It can be a large cave in a cliff or a small hole in a tree.
Readings
Other forms
ほら穴 horāana, a more common, everyday word for 'cave' or 'hole'
Noun
Cave / Hollow
A natural empty space or cavity, such as a cave, an animal’s den, or a hollow in a tree trunk.
Example
木 の 洞 から リス が 顔 を 出し た 。
A squirrel peeked its head out from a hollow in the tree.
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