›the activity of buying and selling goods and services, or a particular company that does this, or work in general rather than pleasure: [C]He runs a dry cleaning business.[U]I’m in Baltimore on business.[U]Our firm does a lot of business with overseas customers.[U]She’s going into business (= starting a business) as a management consultant.[U]How’s business?›Business is also the degree of success of a company or of your work: [U]Business has been good.