beaux arts vs painting

beaux arts and painting both are nouns.

Word	Noun	Adjective	Verb	Adverb
beaux arts	Yes	No	No	No
painting	Yes	No	No	No

As nouns, painting is a hyponym of beaux arts; that is, painting is a word with a more specific, narrower meaning than beaux arts:

Other hyponyms of beaux arts include carving, sculpture, architecture, landscape architecture.

beaux arts (noun)	painting (noun)
the study and creation of visual works of art	creating a picture with paints
	the occupation of a house painter
	the act of applying paint to a surface
	graphic art consisting of an artistic composition made by applying paints to a surface