United States Dollar

The United States Dollar, USD, is the most powerful currency in the world, backed by the world’s largest economy, the United States of America. Represented by the symbol $ or US$ to differentiate it from other dollar-based currencies, the US dollar is considered a benchmark currency, and is the most-used currency in transactions across the world. The United States dollar, often referred to as the greenback, plays an important role in the world economy with its own index. The strength of the U.S. economy supports the dollar's use as a global currency, and is one of the most important reserve currencies in the world.