cooky vs fruit bar

cooky and fruit bar both are nouns.

Word	Noun	Adjective	Verb	Adverb
cooky	Yes	No	No	No
fruit bar	Yes	No	No	No

As nouns, fruit bar is a hyponym of cooky; that is, fruit bar is a word with a more specific, narrower meaning than cooky:

cooky: any of various small flat sweet cakes
fruit bar: cookies containing chopped fruits either mixed in the dough or spread between layers of dough then baked and cut in bars

cooky (noun)	fruit bar (noun)
any of various small flat sweet cakes	cookies containing chopped fruits either mixed in the dough or spread between layers of dough then baked and cut in bars
the cook on a ranch or at a camp