This is the 5582nd most frequent Japanese word.
くぼみ
Hollow, dent, or depression.
In this sentence, 'くぼみ' is used to describe a small indentation or hollow area in the surface of a tree trunk, indicating a physical characteristic.
その木の幹に小さなくぼみがあります。
There is a small dent in the trunk of the tree.
Here, 'くぼみ' refers to a depression or hollow in the land surface, illustrating how it could cause a trip or fall.
彼は土地のくぼみに足を取られて転んだ。
He stumbled and fell because of a depression in the ground.
In this instance, 'くぼみ' is used to indicate depressions or concave features that enhance realism in an artistic representation.