Money refers to a common medium of exchange that is issued under the law of government and acts as a legal tender for the whole country. The functions of money can be classified into two categories: 1. Primary function: The primary function of money includes money as a medium of exchange and money as a measure of value. 2. Secondary function: The secondary function of money includes money as a store of value and money as a standard of deferred payment. Therefore, power indicator is not a function of money.