headmaster
n. countable B2 Upper Intermediate US //ˈhɛdˈmæstɝ// UK //hɛdmˈɑːstɐ// head·mas·ter
n. the person in charge of a school, especially a private school. This title is usually used for a man.
n. the male principal or senior administrative leader of a school, particularly within the British or private education systems.
The headmaster gave a speech at the morning assembly.
Parents requested a meeting with the headmaster to discuss the new school uniform policy.
The headmaster maintained a strict but fair reputation, ensuring that both the academic standards and the moral character of the students remained high throughout his long tenure.
From head + master.
Usage
Commonly used in British English; the female equivalent is 'headmistress', though 'headteacher' is now a more common gender-neutral alternative.