general store vs retail store

general store and retail store both are nouns.

Word	Noun	Adjective	Verb	Adverb
general store	Yes	No	No	No
retail store	Yes	No	No	No

As nouns, retail store is a hypernym of general store; that is, retail store is a word with a broader meaning than general store:

general store: a retail store serving a sparsely populated region; usually stocked with a wide variety of merchandise
retail store: a place of business for retailing goods

Other hypernyms of general store include mercantile establishment, outlet, sales outlet.

general store (noun)	retail store (noun)
a retail store serving a sparsely populated region; usually stocked with a wide variety of merchandise	a place of business for retailing goods