General school-related words:
* Salle de classe (classroom)
* Secrétaire (secretary)
* Système scolaire (school system)
* Scolarité (schooling)
* Scolarisation (school enrollment)
* Surveillant (supervisor)
* Stage (internship)
* Soutien scolaire (tutoring)
Specific subjects:
* Sciences (science)
* Sport (sports)
* Sociologie (sociology)
* Sciences humaines (humanities)
Other options:
* Séminaire (seminar)
* Session (session)
* Scolarisation (school enrollment)
To give you the most accurate answer, please provide some context about what kind of word you're looking for!