Currency is a medium of exchange used to facilitate transactions for goods, services, and debts. Traditionally issued by governments, it takes the form of physical coins and paper bills, each with a designated value. Currency functions as a standardized measure of value, allowing people to compare the costs of different items easily. It also serves as a store of value and a unit of account, enabling savings and financial planning. In modern times, currency has evolved to include digital forms, such as electronic money stored on banking servers, and even decentralized digital currencies like Bitcoin. The stability and value of a currency are often tied to the economic health of the issuing country and are influenced by factors such as inflation, interest rates, and international trade balances. Currency is a foundational element of any economy, enabling the complex web of transactions that power modern societies.