| Mezzanine 1. (n.) Same as Entresol. 2. (n.) A partial story which is not on the same level with the story of the main part of the edifice, as of a back building, where the floors are on a level with landings of the staircase of the main house. 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 |