A deposit is a sum of money placed into a bank account or financial institution. It can be made in various forms, such as cash, checks, or electronic transfers. Deposits are often used to save money, earn interest, or facilitate transactions. When you make a deposit, the bank typically provides a receipt or confirmation. This amount can be withdrawn later, subject to the account's terms. Deposits are essential for managing personal finances and are a fundamental part of the banking system, helping to ensure liquidity and stability in the economy.