The term "rear" refers to the back part of something, often used to describe the position of objects or living beings. In anatomy, the rear of a human body includes the back, buttocks, and spine. It is the opposite of the front or anterior side. In vehicles, the rear is the section located at the back, which may include features like the trunk or tailgate. The rear of a vehicle is important for safety, as it often houses lights and signals that indicate turns or stops to other drivers.