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Also known as monetary unit, unit of money, money unit, currencies

A currency is a standardized form of money, in use or circulation as a medium of exchange, for example banknotes, coins, electronic balances in bank accounts, and central bank digital currencies (CBDCs). A more general definition is that a currency is a system of money in common use within a specific environment over time, especially for people in a nation state. Under this definition, the Pound sterling (£), euro (€), Japanese yen (¥), and U.S. dollars (US$) are examples of (government-issued) fiat currencies. Currencies may act as stores of value and be traded between nations in foreign exch