Fungibility property refers to the ability of an asset to be easily exchanged or substituted for another of the same type and value. In cryptocurrencies, this means that each unit of the currency is interchangeable and holds the same value as any other unit.For example, one Bitcoin can be exchanged for another Bitcoin without any difference in value or utility. This characteristic is essential for cryptocurrencies to function as a medium of exchange, similar to how dollars or euros can be swapped without concern for differences in individual bills or coins.Fungibility ensures that tokens maintain their value and can be used in transactions without any complications. If a particular unit of currency were deemed less valuable due to its history or association with illegal activities, it could undermine the overall trust and usability of the currency itself. Thus, maintaining fungibility is crucial for the stability and acceptance of any digital asset.