Banknotes are pieces of paper money that people use to buy goods and services. They come in different denominations, which means they have different values, like one dollar, five dollars, or twenty dollars. Each banknote usually has unique designs, colors, and security features to prevent counterfeiting. Countries issue their own banknotes, and they are an important part of the economy. When you pay for something with a banknote, you are exchanging it for the value it represents. Banknotes are often used alongside coins and can be found in wallets, cash registers, and even ATMs.