A Well

A hole sunk into the ground as a source of water, oil, natural gas or other fluids.
A place where a liquid such as water surfaces naturally; a spring.
A small depression, e.g. suitable for holding liquid or other objects.
(figurative) 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) The cockpit of a sailboat.
(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 auxiliary screw propeller 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.
The open space between the bench and the counsel tables in a courtroom.
(metalworking) The lower part of a furnace, into which the metal falls.
A well drink.
(video games) The playfield of Tetris and similar video games, into which the blocks fall.
(biology) In a microtiter plate, each of the small equal circular or square sections which serve as test tubes.
(graphical user interface) The region of an interface that contains tabs.