GUARDROOM
Meaning of GUARDROOM in English
guard ‧ room /ˈɡɑːd-rʊm, -ruːm $ ˈɡɑːrd-/ BrE AmE noun [countable]
a room for soldiers who are guarding a military camp
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012