Clapboard /(?)/

Clap·board

Clapboard

n.
  1. A narrow board, thicker at one edge than at the other; -- used for weatherboarding the outside of houses. [U. S.]
  2. A stave for a cask. [Eng.]

Clapboard

v. t.
  1. To cover with clapboards; as, to clapboard the sides of a house. [U. S.]