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 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) 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.