[1] : The Collaborative International Dictionary of English v.0.48

gable \ga"ble\, n. oe. gable, gabil, f. gable, fr. ll. gabalum
   front of a building, prob. of german or scand. origin; cf.
   ohg. gibil, g. giebel gable, icel. gafl, goth. gibla
   pinnacle; perh. akin to gr. ? head, and e. cephalic, or to g.
   gabel fork, as. geafl, e. gaffle, l. gabalus a kind of
   gallows. arch.
   a the vertical triangular portion of the end of a building,
       from the level of the cornice or eaves to the ridge of
       the roof. also, a similar end when not triangular in
       shape, as of a gambrel roof and the like. hence:
   b the end wall of a building, as distinguished from the
       front or rear side.
   c a decorative member having the shape of a triangular
       gable, such as that above a gothic arch in a doorway.
       1913 webster

   bell gable. see under bell.

   gable roof, a double sloping roof which forms a gable at
      each end.

   gable wall. same as gable
   b .

   gable window, a window in a gable.
      1913 webster
see also:
bell gable bell gable roof gable wall gable gable window 

[2] : WordNet (r) 2.0

gable wall
     n : the vertical triangular wall between the sloping ends of
         gable roof syn: gable, gable end
see also:
gable gable end 

Gable >> G Words
Gable, definition of term: Gable
gable_pag1.html

Gable End >> G Words
Gable End, definition of term: Gable End
gable+end_pag1.html

Sea Wall >> S Words
Sea Wall, definition of term: Sea Wall
sea+wall_pag1.html

Retaining Wall >> R Words
Retaining Wall, definition of term: Retaining Wall
retaining+wall_pag1.html

Fire Wall >> F Words
Fire Wall, definition of term: Fire Wall
fire+wall_pag1.html

Dead Wall >> D Words
Dead Wall, definition of term: Dead Wall
dead+wall_pag1.html

Cell Wall >> C Words
Cell Wall, definition of term: Cell Wall
cell+wall_pag1.html

Dry Wall >> D Words
Dry Wall, definition of term: Dry Wall
dry+wall_pag1.html

Chinese Wall >> C Words
Chinese Wall, definition of term: Chinese Wall
chinese+wall_pag1.html

Great Wall Of C >> G Words
Great Wall Of C, definition of term: Great Wall Of C
great+wall+of+c_pag1.html