1. the commanding officer of a place, group, etc.: the commandant of a naval base.
  2. the title of the senior officer and head of the U.S. Marine Corps.
  3. U.S. Army. a title generally given to the heads of military schools.
  4. a commander.


  1. an officer commanding a place, group, or establishment

1680s, from French commandant “the one commanding” originally “commanding,” present participle of commander (Old French comander) “to order, enjoin;” see command (v.). Similar formation in Spanish and Italian comandante.

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