banker's bill vs banknote

banker's bill and banknote both are nouns.

Word	Noun	Adjective	Verb	Adverb
banker's bill	Yes	No	No	No
banknote	Yes	No	No	No

As nouns, banker's bill and banknote are synonyms defined as:

banker's bill and banknote: a piece of paper money (especially one issued by a central bank)

Other synonyms of banker's bill include bank bill, bank note, bill, Federal Reserve note, government note, greenback, note.

banker's bill (noun)	banknote (noun)
a piece of paper money (especially one issued by a central bank)	a piece of paper money (especially one issued by a central bank)