A handheld writing instrument that applies ink to a surface.

• Includes ballpoint, fountain, gel, or felt-tip varieties.

An enclosed area for confining domestic animals.

• Especially for sheep, pigs, or cattle.

Slang for a penitentiary or state prison.

The bullpen in baseball, where relief pitchers warm up.

To write or compose, especially by hand.

To confine or herd into a pen or enclosure.