He put the knife back in its sheath.
A cover or case for a blade or knife.
The sheath of the plant protects the new leaves.
A protective covering for something, often used in biology to describe a structure that surrounds another.
Sheathed the sword carefully after the battle.
To put something into a sheath or cover it.
強力な無料の画像辞書とフラッシュカード付き。
