| Noun | 1. | bank bill - a piece of paper money (especially one issued by a central bank); "he peeled off five one-thousand-zloty notes"folding money, paper currency, paper money - currency issued by a government or central bank and consisting of printed paper that can circulate as a substitute for specie silver certificate - formerly a bank note issued by the United States Treasury and redeemable in silver c-note, hundred dollar bill - a United States bill worth 100 dollars fifty dollar bill, fifty - a United States bill worth 50 dollars twenty dollar bill, twenty - a United States bill worth 20 dollars ten dollar bill, tenner - a United States bill worth 10 dollars two dollar bill - a United States bill worth 2 dollars |