apple vs cooking apple

apple and cooking apple both are nouns.

Word	Noun	Adjective	Verb	Adverb
apple	Yes	No	No	No
cooking apple	Yes	No	No	No

As nouns, cooking apple is a hyponym of apple; that is, cooking apple is a word with a more specific, narrower meaning than apple:

apple: fruit with red or yellow or green skin and sweet to tart crisp whitish flesh
cooking apple: an apple used primarily in cooking for pies and applesauce etc

Other hyponyms of apple include crab apple, crabapple, dessert apple, eating apple.

apple (noun)	cooking apple (noun)
fruit with red or yellow or green skin and sweet to tart crisp whitish flesh	an apple used primarily in cooking for pies and applesauce etc
native Eurasian tree widely cultivated in many varieties for its firm rounded edible fruits