penthouse

penthouse
    n 1: an apartment located on the top floors of a building
    

Penthouse \Pent"house`\, n. [A corruption of pentice.]
   A shed or roof sloping from the main wall or building, as
   over a door or window; a lean-to. Also figuratively. "The
   penthouse of his eyes." --Sir W. Scott.
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Penthouse \Pent"house`\, a.
   Leaning; overhanging. "Penthouse lid." --Shak. "My penthouse
   eyebrows." --Dryden.
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Lean-to \Lean"-to`\, n.
   1. (Arch.) A shed or slight building placed against the wall
      of a larger structure and having a single-pitched roof; --
      called also {penthouse}, and {to-fall}.
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            The outer circuit was covered as a lean-to, all
            round this inner apartment.           --De Foe.
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   2. A crude, usually temporary shelter comprising a lean-to
      roof braced against any convenient support, as a wall, a
      tree or a pole. The roof may extend all the way to the
      ground.
      [PJC]
    

67 Moby Thesaurus words for "penthouse":
      Dymaxion house, White House, adobe house, apartment, building,
      casa, ceiling, chambers, cliff dwelling, cold-water flat,
      consulate, country house, country seat, dacha, deanery,
      duplex apartment, dwelling house, eaves, edifice, embassy,
      erection, fabric, farm, farmhouse, flat, garden apartment, hall,
      house, houseboat, housetop, lake dwelling, lantern, living machine,
      lodge, manor house, manse, overhead, parsonage, plafond,
      prefabricated house, presidential palace, railroad flat,
      ranch house, rectory, ridgepole, roof, roof garden, roof-deck,
      roofage, roofing, roofpole, rooftop, rooftree, set of rooms,
      shingles, skylight, skyscraper, slates, sod house, split-level,
      structure, suite, tenement, tiles, top, town house, vicarage