Dictionary 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 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 |