What is the meaning of Sheath?

A holster for a sword; a scabbard.

Anything that has a similar shape to a scabbard that is used to hold an object that is longer than it is wide.

The base of a leaf when sheathing or investing a branch or stem, as in grasses.

The insulating outer cover of an electrical cable.

One of the elytra of an insect.

A tight-fitting dress.

The foreskin of certain animals (for example, dogs and horses).

A condom.

Alternative spelling of sheathe

Source: wiktionary.org