What Is the US Dollar?

The US dollar (USD) is the official currency of the United States and one of the most widely used and traded currencies in the world. Issued by the Federal Reserve, the US dollar serves as a global benchmark for international trade, finance, and foreign exchange markets. Its symbol is $, and it is commonly used as a reference point for pricing, reserve holdings, and economic indicators.

As , the US dollar is not backed by a physical commodity; its value is supported by legal authority and widespread acceptance. It plays a central role in global commerce, and many countries and institutions hold USD in reserves to support stability and liquidity.

Because of its global reach and liquidity, the US dollar often serves as the base currency for comparing exchange rates. It is also frequently used as the reference for pricing and in crypto markets.

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