Although 'Pennaeth' is becoming a lot more common for the description of 'Headteacher' as a gender neutral alternative to 'Prifathro' and 'Prifathrawes'
What's the difference between 'pennaeth' and 'prifathro' ? Or are they synonyms for headteacher?
No, pennaeth is more a more general "head" of something e.g "Pennaeth adran" (Head of department/Department head) whereas "Prifathro/Prifathrawes" is purely for the headteacher/master/mistress of a school.
What's the difference between a prifathro headmaster and a principal? I never hear the term headmaster being used in my corner of the English language, only principal.
As noted in response to another question, "head teacher" should also be accepted - as it is on some of the questions.
Still not accepted here, but offered as a "Write this in Welsh" elsewhere in the course.