discount store vs discount house

discount store and discount house both are nouns.

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

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

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

Other synonyms of discount store include discounter, wholesale house.

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