c-note vs banker's bill

c-note and banker's bill both are nouns.

Word	Noun	Adjective	Verb	Adverb
c-note	Yes	No	No	No
banker's bill	Yes	No	No	No

As nouns, banker's bill is a hypernym of c-note; that is, banker's bill is a word with a broader meaning than c-note:

c-note: a United States bill worth 100 dollars
banker's bill: a piece of paper money (especially one issued by a central bank)

c-note (noun)	banker's bill (noun)
a United States bill worth 100 dollars	a piece of paper money (especially one issued by a central bank)