| Clerestory 1. (n.) The upper story of the nave of a church, containing windows, and rising above the aisle roofs. 2. (n.) Same as Clearstory. Thesaurus Entries entresol, first floor, flat, floor, ground floor, level, mezzanine, mezzanine floor, rez-de-chaussee, ridgepole, roof, roofpole, rooftop, story, street floor, surface, top, top floor, top side, topside, topsides, upper side, upside |