The sternoclavicular joint is a crucial joint in the human body that connects the clavicle with the sternum. It is responsible for the movement of the shoulders and arms and provides stability to the upper body. There are several synonyms for the sternoclavicular joint, including the SC joint, sternoclavicular articulation, sternoclavicular synarthrosis, and sternal end of clavicle. These terms are commonly used in medical settings and help healthcare practitioners communicate more effectively with each other. Knowing such synonyms is essential for accurately diagnosing and treating injuries or conditions related to the sternoclavicular joint.