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| an upwardly curved construction, as of steel or timber functioning in the manner of a masonry arch; a door or gateway with a curved head |
| a building of exceptional height completely supported by a framework, as of girders, from which the walls are suspended, as opposed to a building supported by load-bearing walls |
balustrade
low screen formed by railings of stone, wood, metal, glass, or other materials and designed to prevent falls from roofs, balconies, terraces, stairways, and other elevated architectural elements
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