plastic art vs art

plastic art and art both are nouns.

Word	Noun	Adjective	Verb	Adverb
plastic art	Yes	No	No	No
art	Yes	No	No	No

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

Other hypernyms of plastic art include fine art.

plastic art (noun)	art (noun)
the arts of shaping or modeling; carving and sculpture	the creation of beautiful or significant things
	the products of human creativity; works of art collectively
	a superior skill that you can learn by study and practice and observation
	photographs or other visual representations in a printed publication