Os pubis is a term used to describe one of the three bones that make up the human pelvis. However, there are several synonyms for this bone. One of the most common synonyms is the pubic bone. It's also referred to as the pubis or the pubic symphysis. The pubic bone is located at the front of the pelvis and joins together with the left and right hip bones to form the pelvic girdle. This bone plays an important role in supporting the weight of the upper body and connecting the pelvis to the legs. Understanding the synonyms for os pubis can help individuals better understand the human anatomy.