tank

(noun) an enclosed armored military vehicle; has a cannon and moves on caterpillar treads. Synonyms: army tank, armored combat vehicle, armoured combat vehicle.

(noun) a large (usually metallic) vessel for holding gases or liquids. Synonyms: storage tank.

(noun) as much as a tank will hold. Synonyms: tankful.

(noun) a freight car that transports liquids or gases in bulk. Synonyms: tank car.

(noun) a cell for violent prisoners. Synonyms: cooler.

(verb) store in a tank by causing (something) to flow into it.

(verb) consume excessive amounts of alcohol.

(verb) treat in a tank. Example: "Tank animal refuse."