Any person or entity which is a rival against another. In business, a company in the same industry or a similar industry which offers a similar product or service. The presence of one or more competitors can reduce the prices of goods and services as the companies attempt to gain a larger market share. Competition also requires companies to become more efficient in order to reduce costs. Fast-food restaurants McDonald's and Burger King are competitors, as are Coca-Cola and Pepsi, and Wal-Mart and Target.