Shell money refers to a currency system that is specific to certain regions in the world. Synonyms for shell money include cowry money, shell currency, and seashell money. Cowry money originates from the use of cowry shells as a form of currency in various parts of Africa and Asia. Shell currency, on the other hand, is used to describe shell-based currency systems in general. Finally, seashell money is used to describe a currency system that is based on the use of different types of seashells, rather than just cowry shells. Regardless of the term used, shell money remains an important part of certain cultures around the world.