discount store vs discounter

discount store and discounter both are nouns.

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

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

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

Other synonyms of discount store include discount house, wholesale house.

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