weath·er·board /-ˌbord, ˌbɔrd/
  (v.)裝以護牆板
  Weath·er·board n.
  1. Naut. (a) That side of a vessel which is toward the wind; the windward side.  (b) A piece of plank placed in a porthole, or other opening, to keep out water.
  2. (a) Arch. A board extending from the ridge to the eaves along the slope of the gable, and forming a close junction between the shingling of a roof and the side of the building beneath.  (b) A clapboard or feather-edged board used in weatherboarding.
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  weatherboard
       n 1: a long thin board with one edge thicker than the other; used
            as siding by lapping one board over the board below
            [syn: clapboard, weatherboarding]
       2: the side toward the wind [syn: to windward, windward side,
           weather side]