In economics, the term currency can refer either to a particular currency, for example the US dollar, or to the coins and banknotes of a particular currency, which comprise the physical aspects of a nation's money supply. The other part of a nation's money supply consists of money deposited in banks (sometimes called deposit money), ownership of which can be transferred by means of cheques or other forms of money transfer such as credit and debit cards. Deposit money and currency are money in the sense that both are acceptable as a means of exchange, but money need not necessarily be currency.

see also dollar