chalk out vs art

chalk out is not a noun while art is a noun.

Word	Noun	Adjective	Verb	Adverb
chalk out	No	No	Yes	No
art	Yes	No	No	No

chalk out (noun)	art (noun)
	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

chalk out (verb)	art (verb)
make a sketch of