store vs tank

store and tank both are nouns.

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

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

Other hyponyms of store include garner, keep, mothball, reposit, wharf, loft, warehouse, garage, bottle, ensile.

store (noun)	tank (noun)
a mercantile establishment for the retail sale of goods or services	a large (usually metallic) vessel for holding gases or liquids
a depository for goods	an enclosed armored military vehicle; has a cannon and moves on caterpillar treads
an electronic memory device	a freight car that transports liquids or gases in bulk
a supply of something available for future use	a cell for violent prisoners
	as much as a tank will hold

store (verb)	tank (verb)
keep or lay aside for future use	treat in a tank
find a place for and put away for storage	consume excessive amounts of alcohol
	store in a tank by causing (something) to flow into it