Superstruction :: Superstruct (v. t.) To build over or upon another structure; to erect upon a foundation.
Superstructive :: Superstruction (n.) That which id superstructed, or built upon some foundation; an edifice; a superstructure..
Superstructure :: Superstructure (n.) Any material structure or edifice built on something else; that which is raised on a foundation or basi.
Superstructure :: Superstructure (n.) all that part of a building above the basement. Also used figuratively.