Pronunciation: (hed'kwôr"turz, -kwô"-),[key] —n., —pl.-ters.(used with a sing. or pl. v.) 1. a center of operations, as of the police or a business, from which orders are issued; the chief administrative office of an organization: The operatives were always in touch with headquarters. 2. the offices or working location of a military commander; the place from which a commander customarily issues orders.
3. a military unit consisting of the commander, his staff, and other assistants.