musician vs director

musician and director both are nouns.

Word	Noun	Adjective	Verb	Adverb
musician	Yes	No	No	No
director	Yes	No	No	No

As nouns, director is a hyponym of musician; that is, director is a word with a more specific, narrower meaning than musician:

musician (noun)	director (noun)
artist who composes or conducts music as a profession	someone who controls resources and expenditures
someone who plays a music as a profession	the person who leads a musical group
	someone who supervises the actors and directs the action in the production of a show
	member of a board of directors
	the person who directs the making of a film