noun
storage box; chest
A box or chest used for storing items; a straightforward compound of 収納 (storage) and 箱 (box).
衣類を収納箱に入れてクローゼットにしまった。
I put the clothes in a storage box and stored it in the closet.
Compound of 収納 (storage) and 箱 (box). The exact historical derivation is uncertain, but the word is a transparent modern compound.