|1.||the part of a building above its foundation|
|2.||any structure or concept erected on something else|
|3.||nautical any structure above the main deck of a ship with sides flush with the sides of the hull|
|4.||the part of a bridge supported by the piers and abutments|
|5.||(in Marxist theory) an edifice of interdependent agencies of the state, including legal and political institutions and ideologies, each possessing some autonomy but remaining products of the dominant mode of economic production|
superstructure su·per·struc·ture (sōō'pər-strŭk'chər)
A structure above the surface.