Plainly
look up a word, understand it — no rabbit hole
principal
nounPRIN-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.
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.