Definition from Wiktionary, the free dictionary
Alternative forms 
From Latin praefectus (“overseer, director, prefect”). Literally 'one having been put in charge'.
- IPA: /ˈpriːfekt/
prefect (plural prefects)
- An official of ancient Rome.
- The head of a department in France.
- A school pupil in a position of power over other pupils.
- A commander.
an official of ancient Rome
the head of a department in France
a school pupil in a position of power over other pupils