A bank is a financial institution that deals with cash and money and loans. It is a business that provides financial services to its customers, primary individuals from the upper or middle classes. Types of banks include commercial banks, investment banks, savings banks, and credit unions.

A bank is a company that offers checking, savings, and loan services. They are often known as financial institutions. Banks were originally formed to facilitate the exchange of money and provide loans to their clients, who typically deposit their cash in the bank for safekeeping. This is also an online bank.