account An arrangement with a bank, shop or other organizations by which they take care of your money or allow you to buy things and pay for Them later. e.g. 1)I've opened an account with a building socie 2)Have you got a bank account?account An arrangement with a bank, shop or other organizations by which they take care of your money or allow you to buy things and pay for them later. e.g. 1) I’ve opened an account with a building society. 2)Have you got a bank account?