A place where a liquid such as water surfaces naturally; a spring.
A small depression suitable for holding liquid, or other objects.
(figuratively) A source of supply.
(nautical) A vertical, cylindrical trunk in a ship, reaching down to the lowest part of the hull, through which the bilge pumps operate.
(nautical) 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 to keep fish alive while they are transported to market.
(nautical) A vertical passage in the stern into which an auxiliaryscrewpropeller may be drawn up out of the water.
(military) A hole or excavation in the earth, in mining, from which run branches or galleries.
(architecture) An opening through the floors of a building, as for a staircase or an elevator; a wellhole.