superior skill vs art

superior skill and art both are nouns.

Word	Noun	Adjective	Verb	Adverb
superior skill	Yes	No	No	No
art	Yes	No	No	No

As nouns, art is a hyponym of superior skill; that is, art is a word with a more specific, narrower meaning than superior skill:

superior skill: more than ordinary ability
art: a superior skill that you can learn by study and practice and observation

Other hyponyms of superior skill include artistry, prowess.

superior skill (noun)	art (noun)
more than ordinary ability	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