Which term describes a person employed by a business?

The term that describes a person employed by a business is "Employee." An employee is someone who works for an organization or individual under a contract of employment, which may be for a definite time period or indefinite. Employees typically receive wages or a salary and are entitled to certain rights and benefits as mandated by employment laws. This relationship is defined by the employer-employee dynamic, where the employer has control over the work performed, including the methods and means of achieving the employee's job responsibilities.

In contrast, a custodian is responsible for cleaning and maintenance tasks, an agent refers to someone authorized to act on behalf of another, often in legal or business transactions, and a partner denotes an individual engaged in a business partnership, sharing profits and liabilities. While these roles are important within a business context, they do not specifically capture the essence of being employed by a business, which is correctly identified by the term "Employee."