Currency

A currency is a standardization of money in any form, 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.

Extends: Currency, [Foreign exchange market](https://wikipedia.org.ai/Foreign exchange market)