banker vs financier

banker and financier both are nouns.

Word	Noun	Adjective	Verb	Adverb
banker	Yes	No	No	No
financier	Yes	No	Yes	No

As nouns, financier is a hypernym of banker; that is, financier is a word with a broader meaning than banker:

Other hypernyms of banker include moneyman.

banker (noun)	financier (noun)
a financier who owns or is an executive in a bank	a person skilled in large scale financial transactions
the person in charge of the bank in a gambling game

banker (verb)	financier (verb)
	conduct financial operations