A business is an organization where people work together. In a business, people work to make and sell products or services. Other people buy the products and services.
A business can earn a profit for the products and services it offers. The word business comes from the word busy, and means doing things.
Every business requires some form of investment and enough customers to whom its output can be sold on a consistent basis in order to make a profit.
An example of a corporate business is Pepsi Co, while a mom-and-pop catering business is a private enterprise.