* Kumu: This is the most common and general term for teacher. It can refer to any kind of teacher, from a school teacher to a master craftsman.
* Kumu kula: This specifically refers to a school teacher.
* Luna: This term is more formal and can be used for someone who is in charge of teaching or guiding others, like a mentor or leader.
So, if you want to say "teacher" in Hawaiian, "kumu" is the most versatile and widely used term.