Final answer:
A transaction is an event that involves cash payments and cash receipts. It refers to the exchange of goods, services, or assets using money as a medium of exchange.
Step-by-step explanation:
The term 'transaction' is best defined as any event that involves cash payments and cash receipts. It refers to the exchange of goods, services, or assets between two or more parties, where money is used as a medium of exchange. Transactions can include purchases, sales, payments, and receipts.