The term "Dollar" refers to a unit of currency used in many countries, most notably in the United States. The U.S. dollar is symbolized by the "$" sign and is divided into 100 smaller units called cents. It is widely accepted for transactions and is often used as a benchmark for other currencies around the world.
In addition to the U.S. dollar, several other countries also use the dollar as their official currency, such as Canada and Australia. The dollar's value can fluctuate based on economic factors, making it an important aspect of global trade and finance.