Making change is the process of exchanging money for goods or services. It involves taking a certain amount of money and exchanging it for coins or bills of lesser value. This process is often used in retail stores, restaurants, and other places where customers need to pay for items. The term 'making change' can also refer to the act of amending or altering something, such as a law or policy. In this context, it means to modify or adjust something in order to make it better or more suitable.