decoupage vs fine art

decoupage and fine art both are nouns.

Word	Noun	Adjective	Verb	Adverb
decoupage	Yes	No	No	No
fine art	Yes	No	No	No

As nouns, fine art is a hypernym of decoupage; that is, fine art is a word with a broader meaning than decoupage:

decoupage: art produced by decorating a surface with cutouts and then coating it with several layers of varnish or lacquer
fine art: the products of human creativity; works of art collectively

Other hypernyms of decoupage include art.

decoupage (noun)	fine art (noun)
the art of decorating a surface with shapes or pictures and then coating it with varnish or lacquer	the products of human creativity; works of art collectively
art produced by decorating a surface with cutouts and then coating it with several layers of varnish or lacquer