The symbol takes the shape of a capital S letter with a vertical line. This sign is famous as the symbol of the official currency of the United States of America. It can have one or sometimes two vertical lines, and it is used on the left side of the given number. Initially, Dollar sign was referred to the Spanish American peso in North America. Then it was adopted by the United States in 1792.
The dollar is the most used currency around the world in trade markets, oil markets, and bank reserve.