shell

Usually written as one word: seashell.

Usually written as one word: eggshell.

Refers to the tough outer layer of nuts, eggs, or some animals.

An outer layer that provides defense. Often used figuratively.

An empty structure or a person lacking substance or emotion. Often used figuratively.

Refers to the remains of a building after a fire. Often used figuratively.

Usually written as one word: tortoiseshell.

Used for explosive weapons.

To become more confident and less shy. Often used figuratively.

To become more confident and less shy. Often used figuratively.

A psychological condition resulting from stressful wartime experiences.