Federal Reserve note vs bank bill

Federal Reserve note and bank bill both are nouns.

Word	Noun	Adjective	Verb	Adverb
Federal Reserve note	Yes	No	No	No
bank bill	Yes	No	No	No

As nouns, Federal Reserve note and bank bill are synonyms defined as:

Federal Reserve note and bank bill: a piece of paper money (especially one issued by a central bank)

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

Federal Reserve note (noun)	bank bill (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)