Weatherboard

1. n. A clapboard or feather-edged board used in weatherboarding.
2. n. That side of a vessel which is toward the wind; the windward side.
3. n. A piece of plank placed in a porthole, or other opening, to keep out water.
4. n. 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.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.