The term "back" or "rear" refers to the part of an object or body that is opposite the front. In human anatomy, the back includes the spine, muscles, and skin that support the torso and protect vital organs. It plays a crucial role in posture and movement. In vehicles, the back or rear section is where the trunk or cargo area is located. This space is designed for storage and can vary in size depending on the type of vehicle, such as a sedan, SUV, or truck. The rear also often includes features like taillights and a rear bumper.