Oilcloth and TARPAULIN are both waterproof materials that are commonly used for a variety of purposes. Oilcloth is a type of fabric that is treated with oil or wax to make it waterproof, and it is often used to make clothing and other items that need to be protected from water. TARPAULIN is a heavy-duty, waterproof material made from canvas or plastic, and it is often used to cover objects or as a protective layer in construction projects.