bank manager vs director

bank manager and director both are nouns.

Word	Noun	Adjective	Verb	Adverb
bank manager	Yes	No	No	No
director	Yes	No	No	No

As nouns, director is a hypernym of bank manager; that is, director is a word with a broader meaning than bank manager:

Other hypernyms of bank manager include manager, managing director.

bank manager (noun)	director (noun)
manager of a branch office of a bank	someone who controls resources and expenditures
	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