Currency symbols are unique characters or sequences of characters that are used to represent a specific currency. For example, the dollar sign "$" is used to represent the United States dollar, the euro sign "€" is used to represent the euro, and the pound sign "£" is used to represent the British pound. Other examples include the Japanese yen "¥", the Swiss franc "CHF", and the Canadian dollar "C$". Currency symbols are typically used in financial documents, bank statements, and online transactions to represent the currency in which a monetary value is being expressed.