Tarpaulin

noun

1. A tarp, a heavy, waterproof sheet of material, often cloth, used as a cover or blanket.

   "Throw a tarpaulin over that woodpile before it gets wet."

2. A sailor (often abbreviated to tar)
3. Any heavy, waterproof material used as a cover.
4. Canvas waterproofed with tar, used as a cover.
5. A hat made of, or covered with, painted or tarred cloth, worn by sailors and others.