principal

C'est le principal.

That's the main thing.

Qui a le rôle principal ?

Who has the main role?

Il doit être le principal.

He must be the principal.

Elle déteste le principal.

He dislikes the principal.

Les principales ethnies du pays

The principal ethnic groups of the country

Le principal l'a remarqué.

The principal noticed that.

Ceci est notre objectif principal.

This is our main objective.

Le principal veut vous parler.

The principal wants to talk to you.

Dan est devenu le principal suspect.

Dan became the prime suspect.

Quel est le but principal de ce plan ?

What is the main purpose of this plan?

Notre principal problème reste sans solution.

Our main problem remains unsolved.

Tom est le personnage principal.

Tom is the main character.