nouvelle cuisine vs cuisine

nouvelle cuisine and cuisine both are nouns.

Word	Noun	Adjective	Verb	Adverb
nouvelle cuisine	Yes	No	No	No
cuisine	Yes	No	No	No

As nouns, cuisine is a hypernym of nouvelle cuisine; that is, cuisine is a word with a broader meaning than nouvelle cuisine:

nouvelle cuisine: a school of French cooking that uses light sauces and tries to bring out the natural flavors of foods instead of making heavy use of butter and cream
cuisine: the practice or manner of preparing food or the food so prepared

Other hypernyms of nouvelle cuisine include culinary art.

nouvelle cuisine (noun)	cuisine (noun)
a school of French cooking that uses light sauces and tries to bring out the natural flavors of foods instead of making heavy use of butter and cream	the practice or manner of preparing food or the food so prepared