Rechercher
to prevent
01
empêcher
to not let someone to do something
02
empêcher
to stop something from happening
Exemple
The security guard prevented the unauthorized person from entering the building.
The lock on the door helps prevent burglaries in the neighborhood.
The referee intervened to prevent the players from escalating the argument into a physical altercation.
She tried to prevent her younger brother from eating too much candy before dinner.
She took precautions to prevent her child from getting lost in the crowded mall.