What term is used to describe a worker under an employer's control?

The term that describes a worker under an employer's control is "employee." An employee works for an organization or individual in exchange for remuneration and is subject to the direction and control of the employer in terms of how work is to be done. This relationship typically includes obligations such as completing assigned tasks, adhering to company policies, and working under the supervision of management.

In contrast, an employer is the individual or organization that hires and manages employees. A contractor operates independently and is usually not under the same level of control as an employee; they typically work on a project basis and often have more autonomy over how they complete their tasks. A manager may lead employees but is not the worker being managed; instead, they hold a supervisory position that involves overseeing the work of others. Therefore, the distinction between an employee and these other roles clarifies why "employee" is the correct term in this context.