superstructure Syllabification: (su·per·struc·ture)Pronunciation: /ˈso͞opərˌstrəkCHər/Translate superstructure | into Italian Definition of superstructure noun a structure built on top of something else. the parts of a ship, other than masts and rigging, built above its hull and main deck. the part of a building above its foundations. a concept or idea based on others. (in Marxist theory) the institutions and culture considered to result from or reflect the economic system underlying a society. Derivatives superstructuralPronunciation: /ˌso͞opərˈstrəkCHərəl/ adjective superstructure in other Oxford dictionaries Definition of superstructure in the British & World English dictionary