Waterproof /(?)/

Wa·ter·proof

Waterproof

a.
  1. Proof against penetration or permeation by water; impervious to water; as, a waterproof garment; a waterproof roof.

Waterproof

n.
  1. A substance or preparation for rendering cloth, leather, etc., impervious to water.
  2. Cloth made waterproof, or any article made of such cloth, or of other waterproof material, as rubber; esp., an outer garment made of such material.

Waterproof

v. t.
  1. To render impervious to water, as cloth, leather, etc.