Bank notes are a type of currency that is recognized throughout the world. They are also known as bills, banknotes, paper money, cash, and notes. The term banknote is usually used to describe a type of currency that is issued by a central bank or monetary authority. In the United States, bank notes are commonly referred to as dollar bills, but they are also known as greenbacks. Other synonyms for bank notes include bankroll, currency, funds, payment, and legal tender. No matter what you call them, bank notes are an important part of the global economy and an essential component of daily life for people all over the world.