- Architecture.
- a light structure on a dome or roof, serving as a belfry, lantern, or belvedere.
- a dome, especially one covering a circular or polygonal area.
- any of various domelike structures.
- a vertical furnace for melting iron to be cast.
- a roof or ceiling in the form of a dome
- a small structure, usually domed, on the top of a roof or dome
- a protective dome for a gun on a warship
- a vertical air-blown coke-fired cylindrical furnace in which iron is remelted for casting
