Progeria is a rare genetic condition that involves accelerated aging and premature death. The medical term for this condition is Hutchinson-Gilford Progeria Syndrome. There are a few synonyms for the term progeria that are used for reference and research purposes. One of the most widely used terms is Pseudo Hutchinson-Gilford Progeria Syndrome or PHGPS. Other synonyms include Werner Syndrome, Hallermann-Streiff Syndrome and Cockayne Syndrome. These conditions share some similarities with progeria but also have distinct features that set them apart. It is important to understand these synonyms and their unique characteristics in order to diagnose and treat these conditions effectively.