The word "headteacher" can be replaced by various synonyms depending on its context. For instance, in some countries, the term "principal" is used instead of "headteacher" to refer to the leader of a school. Likewise, "headmaster" can also be used in place of "headteacher" in some schools. In some contexts, "director" or "superintendent" can also be used to refer to the headteacher or principal of a school. Furthermore, the term "head of school" can be used to describe the headteacher's role and responsibilities to oversee the academic and administrative operations of a school. Ultimately, the choice of synonym used for "headteacher" depends on regional and cultural differences.