bomber Syllabification: (bomb·er)Pronunciation: /ˈbämər/Translate bomber | into French | into German | into Italian | into Spanish Definition of bomber noun 1an aircraft designed to carry and drop bombs. 2a person who plants, detonates, or throws bombs in a public place, especially as a terrorist. 3 informal a cigarette containing marijuana. 4short for bomber jacket.bomber in other Oxford dictionaries Definition of bomber in the British & World English dictionary