The currency used in the United States is the United States Dollar, often abbreviated as USD. The dollar is denoted by the symbol "$" and is divided into 100 cents. It serves as the primary medium of exchange in the United States and is one of the most widely used currencies in the world. Besides being the official currency in the U.S., the dollar is also used in several other countries and territories, either as an official currency or as a de facto currency. Its stability and global acceptance make it a key component of international trade and finance.