currency is a system of money used in a particular country or region. It is a medium of exchange that facilitates the buying and selling of goods and services. Currency can take the form of physical banknotes and coins, or it can exist as digital money, such as in the form of bank deposits or electronic transfers.
Different countries have their own currencies, such as the US dollar, the Euro, the British pound, the Japanese yen, the Chinese yuan, and so on. Each currency has its own exchange rate, which determines its value relative to other currencies in the international market. The exchange rate can fluctuate based on various factors, such as political stability, economic performance, and market demand.