catwalk

catwalk
    n 1: narrow platform extending out into an auditorium; "models
         displayed clothes on a catwalk at the fashion show"
    2: narrow pathway high in the air (as above a stage or between
       parts of a building or along a bridge)
    

catwalk \catwalk\ n.
   1. A narrow walkway projecting from a stage into the seating
      area of a theater; it is used, e. g. by models displaying
      clothes on it at a fashion show. Called also {runway}.
      [WordNet 1.5 +PJC]

   2. A narrow walkway high in the air to allow workers access
      to parts of a structure otherwise difficult to reach.
      Catwalks are located, e.g. above a stage in a theater,
      between parts of a building, along the side of a bridge,
      on the outside of a railroad car, on the outside of a
      large storage tank, etc.
      [WordNet 1.5 +PJC]
    

58 Moby Thesaurus words for "catwalk":
      Bifrost, alameda, bascule bridge, bateau bridge, beaten path,
      beaten track, berm, bicycle path, boardwalk, bridge, bridle path,
      cantilever bridge, drawbridge, esplanade, fastwalk,
      floating bridge, flyover, foot pavement, footbridge, footpath,
      footway, gangboard, gangplank, gangway, garden path, groove,
      hiking trail, lift bridge, mall, overbridge, overcrossing,
      overpass, parade, path, pathway, pontoon bridge, prado, promenade,
      public walk, rope bridge, run, runway, rut, sidewalk, span,
      stepping-stone, stepstone, suspension bridge, swing bridge,
      toll bridge, towing path, towpath, track, trail, trottoir, viaduct,
      walk, walkway