The short word that means a Mafia chief is "Don." In the context of organized crime, particularly associated with Italian-American Mafia families, "Don" is used to refer to the head or leader of a Mafia family or syndicate. The term "Don" originated from the Italian word "Donno" or "Donnus," which means "lord" or "boss." The title "Don" conveys authority, respect, and power within the criminal underworld. It is often accompanied by a hierarchical structure and a code of honor within the Mafia organization. The role of a "Don" involves making important decisions, overseeing criminal activities, and maintaining control over the various aspects of the Mafia operation.