The main office of an organization is its headquarters. The headquarters of your favorite video game company might be in New York.

Companies, clubs, and religious groups all have headquarters, or a central administrative location. Militaries also have headquarters, although the word has a slightly different meaning in that context — military headquarters are where commanders and their staffs live and work. The word has been around since the 1600's, from the "most important or principal" meaning of head and quarters, originally "military dwelling place," and later "lodgings."

Definitions of headquarters
  1. noun
    (usually plural) the office that serves as the administrative center of an enterprise
    “many companies have their headquarters in New York”
    synonyms: central office, home base, home office, main office
    see moresee less
    an Arabic word for headquarters or administrative center
    type of:
    business office, office
    place of business where professional or clerical duties are performed
  2. noun
    the military installation from which a commander performs the functions of command
    “the general's headquarters were a couple of large tents”
    synonyms: HQ, military headquarters
    see moresee less
    GHQ, command post, general headquarters
    military headquarters from which a military commander controls and organizes the forces
    a military facility that serves as the headquarters for military police and in which military prisoners can be detained
    type of:
    military installation
    any facility servicing military forces
  3. noun
    (plural) a military unit consisting of a commander and the headquarters staff
    see moresee less
    ACLANT, Allied Command Atlantic
    a major strategic headquarters of NATO located in the United States; is under the authority of the North Atlantic Council
    ACE, Allied Command Europe
    a major strategic headquarters of NATO; safeguards an area extending from Norway to Turkey
    type of:
    force, military force, military group, military unit
    a unit that is part of some military service
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week