The French word "directeur" has several synonyms. "Chef" is often used in a professional context and refers to someone who is in charge of a team or organization. "Responsable" and "gestionnaire" both imply a degree of responsibility and decision-making power. "Administrateur" can also be used to refer to someone in a management role, particularly in a corporate or institutional setting. Other synonyms include "patron" or "boss," which are more informal and colloquial. In general, the term "directeur" suggests a level of authority and leadership, and its synonyms reflect this connotation.