One of the major functions of money is to serve as a medium of exchange. This means that money is used as a way to facilitate transactions between people, businesses, and governments. Instead of having to barter goods or services directly with each other, people can use money to buy and sell goods and services. Money makes transactions easier because it is widely accepted and recognized as a means of payment. Without money, transactions would be much more difficult and time-consuming, which would make it harder for people to get the things they need and want.