headquarters

Noun

• (plural) a military unit consisting of a commander and the headquarters staff

• the military installation from which a commander performs the functions of command
  • the general's headquarters were a couple of large tents
    

• (usually plural) the office that serves as the administrative center of an enterprise
  • many companies have their headquarters in New York
    

Related words

• Synonyms: 
  HQ , military headquarters , central office , main office , home office , home base