drink vs tank

drink and tank both are nouns.

Word	Noun	Adjective	Verb	Adverb
drink	Yes	No	Yes	No
tank	Yes	No	Yes	No

As verbs, tank is a hyponym of drink; that is, tank is a word with a more specific, narrower meaning than drink:

Other hyponyms of drink include port, claret, bar hop, pub-crawl, bib, tipple, hit it up, inebriate, soak, souse, wine, carry, hold.

drink (noun)	tank (noun)
the act of drinking alcoholic beverages to excess	a large (usually metallic) vessel for holding gases or liquids
the act of swallowing	an enclosed armored military vehicle; has a cannon and moves on caterpillar treads
any liquid suitable for drinking	a freight car that transports liquids or gases in bulk
a single serving of a beverage	a cell for violent prisoners
any large deep body of water	as much as a tank will hold

drink (verb)	tank (verb)
be fascinated or spell-bound by; pay close attention to	treat in a tank
take in liquids	consume excessive amounts of alcohol
consume alcohol	store in a tank by causing (something) to flow into it
drink excessive amounts of alcohol; be an alcoholic
propose a toast to