A hole or excavation in the earth, in mining, from which
run branches or galleries.

An opening through the floors of a building, as for a
staircase or an elevator; a wellhole.

An inclosure in the middle of a vessel’s hold, around the
pumps, from the bottom to the lower deck, to preserve the pumps from
damage and facilitate their inspection.

A depressed space in the after part of the deck; – often
called the cockpit.

A compartment in the middle of the hold of a fishing
vessel, made tight at the sides, but having holes perforated in the
bottom to let in water for the preservation of fish alive while they
are transported to market.

Fig.: A source of supply; fountain; wellspring.

A pit or hole sunk into the earth to such a depth as to
reach a supply of water, generally of a cylindrical form, and often
walled with stone or bricks to prevent the earth from caving in.

An issue of water from the earth; a spring; a fountain.

A shaft made in the earth to obtain oil or brine.

A vertical passage in the stern into which an auxiliary
screw propeller may be drawn up out of water.