HOLSTER Meaning of HOLSTER in English hol ‧ ster /ˈhəʊlstə $ ˈhoʊlstər/ BrE AmE noun [countable] [ Date: 1600-1700 ; Language: Dutch ]a leather object for carrying a small gun, that is worn on a belt Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012