Dempsey, Jack Syllabification: (Demp·sey, Jack)Pronunciation: /ˈdem(p)sē/Definition of Dempsey, Jack (1895–1983), US boxer; full name William Harrison Dempsey. He was world heavyweight champion 1919–26. Dempsey, Jack in other Oxford dictionaries Definition of Dempsey, Jack in the British & World English dictionary
