👉 In mathematics and economics, a non-currency is a non-existent or imaginary entity. Non-currencies are often used to represent abstract concepts or hypothetical entities in these fields. For example, in economics, non-currencies could be used to represent things like "non-physical" assets or "non-renewable resources" that cannot be replaced or replenished. In mathematics, a non-currency is a mathematical concept not directly related to currency. It can serve as a placeholder for abstract concepts or