The term "head master" traditionally refers to the principal or head of a school. However, depending on the country or region, different terms may be used to refer to the same position. In the United States, the term "headmaster" is typically replaced with "principal" or "head of school." In other countries, "head teacher" or "headmistress" may be used instead. Similarly, the term "head of department" might be used in a university context to refer to a professor who is in charge of a specific academic department. Regardless of terminology, these individuals serve as leaders and decision-makers within their respective institutions, overseeing academic programs, policies, and administrative functions.