well

A deep hole or shaft sunk into the earth to obtain water, oil, gas, or brine.

A container or reservoir for a liquid, such as ink.

A place where water issues from the earth; a spring or fountain.

A mineral spring.

A watering place; a spa.

An abundant source.

An open space extending vertically through the floors of a building, as for stairs or ventilation.

An enclosure in a ship’s hold for the pumps.