superstructure
n. C1 Advanced US //ˈsupɝˌstɹəktʃɝ// UK //sˈuːpəstɹˌʌktʃɐ// su·per·struc·ture
n. the main part of a ship or building that is built on top of the basic frame. It includes everything like the deck, windows, and doors.
n. the main body of a vessel or building, including all the decks, fittings, and other structures built upon the hull or foundation.
The ship's superstructure is made of steel and glass.
Engineers inspected the superstructure for any signs of rust or damage after the storm.
The architect designed a lightweight superstructure to minimize the building's environmental impact while maintaining the structural integrity required for high-rise construction.
From super- + structure.