商务 (shāngwù) refers to 'business' as a field or activity, especially in formal or professional contexts like meetings, travel, or cooperation. It is broader than 商业 (shāngyè), which focuses on commerce and trade as an industry, and more abstract than 业务 (yèwù), which means specific work or services. Use 商务 for general business affairs (e.g., 商务会议 'business meeting'), not for a company or person.