STRONGROOM Meaning of STRONGROOM in English strong ‧ room /ˈstrɒŋruːm, -rʊm $ ˈstrɒːŋ-/ BrE AmE noun [countable] a special room in a bank, shop etc where valuable objects can be kept safely Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012