Business is the sale of goods or services to try to make a profit, as in Restaurants are a tough business, with many restaurants closing in the first few years.

Business is also used to refer to any person or group of people that operate with the purpose of making money, as in Yen and Tao went into business walking the dogs in their neighborhood.

Business is also used to refer to the sales and money brought in by a business, as in Even though we had a lot of visitors to the store, business was slow over the weekend.

Business has many other senses related to work and trade, but it can also refer to someone’s personal concern or interest. Your feelings, for example, are your own business.

Business can also be used as an adjective to describe anything related to the workings of a profession or exchange of money, as in The business office is closed on weekends, but the store is usually open.