1. a commercial enterprise or company engaged in buying, selling, or providing goods or services
2. commercial, industrial, or professional dealings or transactions
3. one's regular occupation or profession

Examples

• She started three successful businesses before turning thirty.
• The city has many small businesses on Main Street.
• He is in the real estate business.
• We need to discuss some important business matters at the meeting.
• That is none of your business.
• The restaurant business is very competitive.
• Many businesses closed during the pandemic.
• Her family has been in the farming business for generations.