'Headquarters' definitions:

Definition of 'headquarters'

From: WordNet
noun
(usually plural) the office that serves as the administrative center of an enterprise; "many companies have their headquarters in New York" [syn: headquarters, central office, main office, home office, home base]
noun
The military installation from which a commander performs the functions of command; "the general's headquarters were a couple of large tents" [syn: headquarters, HQ, military headquarters]
noun
(plural) a military unit consisting of a commander and the headquarters staff

Definition of 'Headquarters'

From: GCIDE
  • Headquarters \Head"quar`ters\ (-kw[add]r`t[~e]rz), n. pl. [but sometimes used as a n. sing.]
  • 1. The quarters or place of residence of any chief officer, as the general in command of an army, or the head of a police force; the place from which orders or instructions are issued; hence, the center of authority or order. [1913 Webster]
  • The brain, which is the headquarters, or office, of intelligence. --Collier. [1913 Webster]
  • 2. The main office from which an organization such as a commercial enterprise is managed; -- usually where the chief executive officer works. [PJC]

Synonyms of 'headquarters'

From: Moby Thesaurus