Supraclavicular is a term that refers to the area above the clavicle or collarbone and can be used to describe a physical location, a medical condition or an anatomical feature. However, there are a number of words that can be used as synonyms for supraclavicular, depending on the context. For example, words such as clavicular, infraclavicular, subclavian or suprasternal could be used to describe different areas around the collarbone. Other terms such as cervical, thoracic or upper chest might be used to describe a more general region of the body. Ultimately, the appropriate synonym will depend on the specific context.