A bank is an institution with a twofold function. First, it keeps people’s money safe and readily available. In this way it functions as a saving bank. Secondly, it lends money to people who need it. It is also, therefore, a money lender.
Anyone can go to any bank and deposit money, that is, ask the bank to look after it. He becomes a customer of the bank. When he deposits money, we say he opens a bank account.
(Taken from Bahasa Inggris SMP kelas 3)