Tarpaulin

Noun

 * 1)  A heavy, waterproof sheet of material, often cloth, used as a cover.
 * Throw a tarpaulin over that woodpile before it gets wet.
 * 1)  A sailor. Often abbreviated to just tar.
 * 2)  Any heavy, waterproof material used as a cover.
 * 3)  Canvas waterproofed with tar, used as a cover.

Derived terms

 * tarp