Meanings:
noun
Definition: A substance or preparation for rendering cloth, leather, etc., impervious to water.
Definition: Cloth made waterproof, or any article made of such cloth, or of other waterproof material, as rubber; especially, an outer garment made of such material.
verb
Definition: To make waterproof or water-resistant.
adjective
Definition: Unaffected by water.
Definition: Made of or covered with material that doesn’t allow water in.
Definition: Incapable of failing; unassailable.