wholesale house vs discount store

wholesale house and discount store both are nouns.

Word	Noun	Adjective	Verb	Adverb
wholesale house	Yes	No	No	No
discount store	Yes	No	No	No

As nouns, wholesale house and discount store are synonyms defined as:

wholesale house and discount store: a sales outlet offering goods at a discounted price

Other synonyms of wholesale house include discount house, discounter.

wholesale house (noun)	discount store (noun)
a sales outlet offering goods at a discounted price	a sales outlet offering goods at a discounted price