"How to say 'teacher' in English" can be translated into English as "teacher".
If you are looking for a more precise or specific term, it could depend on the context and cultural background. For instance, in the UK, a teacher might be referred to as a "lecturer", "professor", or "headteacher", while in the US, they might be called "teacher", "instructor", or "educator". Additionally, certain professions such as coaches, tutors, or mentors may not necessarily fit the traditional definition of a "teacher".
To learn more about these different terms and how they are used in various contexts, it would be helpful to study the language in its natural environment, whether that be through reading books, watching movies or TV shows, or conversing with native speakers.
