shell

noun

1
hard outer covering or case of certain organisms such as arthropods and turtles
2
the hard largely calcareous covering of a mollusc or a brachiopod
3
a metal sheathing of uniform thickness (such as the shield attached to an artillery piece to protect the gunners)
4
ammunition consisting of a cylindrical metal casing containing an explosive charge and a projectile; fired from a large gun
5
the housing or outer covering of something
the clock has a walnut case
6
a very light narrow racing boat
7
a rigid covering that envelops an object
the satellite is covered with a smooth shell of ice
8
the exterior covering of a bird's egg
9
the hard usually fibrous outer layer of some fruits especially nuts
10
the material that forms the hard outer covering of many animals

Also useful for “shell”:Wordle Solver— Five letters — perfect Wordle material