A currency is money in the form of medium of exchange. The main physical form is in circulating banknotes, coins, and digital format such as Bitcoin and Litecoin.

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Examples of currency:

Euro

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There are many physical forms of currency such as the British pounds, the US dollars, the European euros, and the Russian ruble. There are also many forms of digital currency such as the Bitcoin, Ethereum, Dogecoin, and much more.

The currencies are stores of value and traded between nations in foreign exchange markets and also between the people. The foreign exchange markets determine the relative values of the different currencies.

Other terms for currency can be in the form of banknote, coin and money. The currencies can be in the form of fiat money and commodity money.