principal

PRIN-sih-pul

meaning in plain English

The main person in charge at a school, like a boss. Also, the most important thing in a group.

Think of a school principal as the main boss— the principal person who runs the show.

for example

The school’s principal told everyone to come to the big meeting in the gym.

Think of the principal as the top leader at a school. Why? Because just like how the captain runs a team, the principal runs the school.