second-hand store vs store

second-hand store and store both are nouns.

Word	Noun	Adjective	Verb	Adverb
second-hand store	Yes	No	No	No
store	Yes	No	Yes	No

As nouns, store is a hypernym of second-hand store; that is, store is a word with a broader meaning than second-hand store:

Other hypernyms of second-hand store include shop.

second-hand store (noun)	store (noun)
a shop that sells secondhand goods at reduced prices	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

second-hand store (verb)	store (verb)
	keep or lay aside for future use
	find a place for and put away for storage