triptych vs fine art

triptych and fine art both are nouns.

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

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

triptych: art consisting of a painting or carving (especially an altarpiece) on three panels (usually hinged together)
fine art: the products of human creativity; works of art collectively

Other hypernyms of triptych include art.

triptych (noun)	fine art (noun)
art consisting of a painting or carving (especially an altarpiece) on three panels (usually hinged together)	the products of human creativity; works of art collectively