Someone who works in a bank and receives or pays out money.
Someone who wants to purchase something is a customer (in a shop, in a bank…).
to buy something
There are different kinds of bank accounts, but the idea for all of them is to put your money there to keep it safe.
You put the money that you need now or soon here (e.g. for paying bills).
Here, you put the money that you do not plan to use for a long time (to save money for later).
This is short for "cash machine" – this is where you get your money from.