currencies

Currency is the official money used in a country to buy goods, pay services, and settle debts. It can be in the form of coins and paper bills, but also digital formats like bank balances. Currencies have value because governments or central banks declare them as legal tender, and their value fluctuates based on economic factors, trade, and confidence. Different countries have different currencies (like dollars, euros, yen), and exchange rates determine how much of one currency you get for another. Essentially, currency acts as a universal medium of exchange, store of value, and unit of account within an economy.