discount store vs retail store

discount store and retail store both are nouns.

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

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

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

discount store (noun)	retail store (noun)
a sales outlet offering goods at a discounted price	a place of business for retailing goods