mogul1Pronunciation: /ˈməʊg(ə)l/Translate mogul | into French | into Italian Definition of mogul noun 1 informal an important or powerful person, especially in the film or media industry: the Hollywood movie mogul, Sam Goldwyn 2 (Mogul) a steam locomotive of 2-6-0 wheel arrangement. Origin: late 17th century: figurative use of Mogulmogul in other Oxford dictionaries Definition of mogul in the US English dictionary