Pronunciation (UK) IPA (key): /ˌhɛd.ˈkwɔː.təz/ (US) IPA (key): /ˈhɛd.ˌkwɔr.təz/ Audio (UK)(file) Audio (US)(file) Noun Singular headquarters Plural headquarters A headquarters is the main building in control of whatever is going on in an organization. A headquarters is a military command center that controls and commands troops.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads