hollow; pond in a hollow
Rare term for a natural depression or a small body of water that collects in such a hollow.
There was a small hollow along the mountain path.
When it rains, water collects in that hollow.
Rare kanji spelling; the word itself is uncommon.
Variant kanji spelling using 凹 for the hollow meaning.
Compound of 窪 (kubo, 'hollow') and 溜まり (tamari, 'pool, accumulation'). The exact historical derivation is uncertain.