Definitions

1. noun

A covering or case, typically made of leather, metal, or plastic, used to protect or enclose a sword, knife, or other object.

“He carefully placed the sword back in its sheath after use.”

2. noun

A covering or case for the body of a seed pod, especially in plants such as grasses and sedges.

“The sheath of the grass seed pod was dry and brittle.”

3. verb

To put something, especially a sword or knife, back into its sheath or case.

“She sheathed her sword and put it away in the cupboard.”

4. verb

To encase or cover something in a sheath, especially a seed pod in a plant.

“The plant sheathed its seed pod in preparation for winter.”