principal

/pʁɛ̃.si.pal/
1.
adjectiveSing

main

primary

chief

Notre objectif principal est de réduire les émissions de CO2.

Our main objective is to reduce CO2 emissions.

Synonyms:majeur, essentiel, fondamental
2.
nounmasculineSing

the main thing

the essential point

L'important, c'est de participer ; c'est ça le principal.

The important thing is taking part; that's the main point.

Synonyms:l'essentiel
3.
nounmasculineSing

the head of a collège (middle school) — school principal

Au collège, le principal a convoqué les parents.

At the middle school, the principal called the parents in.

Synonyms:chef d'établissement
principal - French Definition & Examples