The term 'head boss' can be summarized as a job description for a CZAR, which is a four-letter word. A CZAR is a powerful leader or ruler who has absolute authority over a certain area or domain. Historically, Czars were the rulers of Russia, but the term is now used to refer to any person in a position of great power and influence. In modern times, Czars are often appointed to oversee a particular sector or industry, such as the economy, health care, or education.