Nickel: A slang term for a five-dollar bill, nickel is often used among younger generations to refer to their financial resources. From its nickname to its physical coinage, the nickel has been a powerful symbol of money throughout history. In investing and finance, it’s also used as a unit of measurement, with one nickel being equivalent to 1/100 of a United States dollar. With many aspects of modern life now defined by money, this iconic coin stands proud – holding greater meaning than ever before.