prison cell vs tank

prison cell and tank both are nouns.

Word	Noun	Adjective	Verb	Adverb
prison cell	Yes	No	No	No
tank	Yes	No	Yes	No

As nouns, tank is a hyponym of prison cell; that is, tank is a word with a more specific, narrower meaning than prison cell:

Other hyponyms of prison cell include bullpen, detention cell, detention centre, cooler, dungeon, guardroom, hold, keep, sweatbox.

prison cell (noun)	tank (noun)
a room where a prisoner is kept	a large (usually metallic) vessel for holding gases or liquids
	an enclosed armored military vehicle; has a cannon and moves on caterpillar treads
	a freight car that transports liquids or gases in bulk
	a cell for violent prisoners
	as much as a tank will hold

prison cell (verb)	tank (verb)
	treat in a tank
	consume excessive amounts of alcohol
	store in a tank by causing (something) to flow into it