to discharge, to dismiss, to fire, to sack, to retrench, to ax, to give the sack {ww.} congédier
renvoyer
débaucher
destituer
licencier
First of all, we must dismiss him.
Tout d'abord nous devons le congédier.
First of all, we must dismiss the cook.
D'abord nous devons renvoyer le cuisinier.