Waterproof cloth is a type of fabric that is designed to be impervious to water. OILSKIN (7 letters) is a type of waterproof cloth made from cotton fabric treated with linseed oil, paraffin wax, and sometimes fish oil. TARPAULIN (9 letters) is a waterproof cloth made from canvas or other heavy-duty synthetic material. Oilcloth (8 letters) is a waterproof cloth made from cotton fabric treated with oil or wax. Tarp (4 letters) is a waterproof cloth made from polyethylene or other synthetic material. Loden (5 letters) is a waterproof cloth made from wool fabric treated with oil or wax.