french-fried potatoes vs chips

french-fried potatoes and chips both are nouns.

Word	Noun	Adjective	Verb	Adverb
french-fried potatoes	Yes	No	No	No
chips	Yes	No	No	No

As nouns, french-fried potatoes and chips are synonyms defined as:

Other synonyms of french-fried potatoes include french fries, fries.

french-fried potatoes (noun)	chips (noun)
strips of potato fried in deep fat	strips of potato fried in deep fat