Rendered as the letter “s” struck through with one or two vertical lines, its use dates back at least to the late eighteenth century. · nobody knows for certain who invented the dollar sign. Dollar sign, $, symbol that represents the dollar, the name of the standard monetary unit used in the united states, canada, australia, new zealand, and a number of other countries and territories. · discover the meaning and uses of the dollar sign ($) in computing, from its placement on keyboards to its role in programming languages and social networking. Learn how this unusual character evolved from colonial currency to the center of the financial system. It also transcends currency, having become a widespread symbol in pop culture. · today, the dollar sign is a symbol of american power. The $ (dollar sign) symbol is used to represent various forms of currency around the world, most notably the united states dollar. For example, $20 represents twenty dollars. The dollar sign, also known as the peso sign, is a currency symbol consisting of a capital s crossed with one or two vertical strokes ($ or depending on typeface), used to indicate the unit of various currencies around the world, including most currencies denominated dollar or peso. · the dollar sign, or “$,” is one of the most recognizable currency symbols in the world, instantly understood across languages and cultures.