Teacher in Malayalam

Malayalam words whose English meaning includes “teacher”:

അദ്ധ്യാപകന്‍ (adhyapakan) — Teacher, instructor, man teacher.
ആചാര്യന്‍ (aacharyan) — Teacher, master, preceptor, guru.
ഗുരുനാഥന്‍ (gurunaathan) — Respected preceptor or teacher.
വാത്തി (vaathi) — Teacher, barber.