Meaning of the word "head teacher" in English

What does "head teacher" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

head teacher

US /ˈhɛd ˈtiːtʃər/
UK /ˈhɛd ˈtiːtʃər/

Noun

the person in charge of a school

Example:
The head teacher announced the new school policy.
She was called to the head teacher's office.