accumulate vs store

accumulate is not a noun while store is a noun.

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

As verbs, store is a hypernym of accumulate; that is, store is a word with a broader meaning than accumulate:

Other hypernyms of accumulate include hive away, lay in, put in, salt away, stack away, stash away.

accumulate (noun)	store (noun)
	a mercantile establishment for the retail sale of goods or services
	a depository for goods
	an electronic memory device
	a supply of something available for future use

accumulate (verb)	store (verb)
increase in amount by collecting or gathering	keep or lay aside for future use
get or gather together	find a place for and put away for storage