Definitions
1.AdjectiveResistant to the effects of water.
2.AdjectiveMade of or covered with material that doesn't allow water in.
3.AdjectiveIncapable of failing; unassailable.
4.VerbTo make waterproof or water-resistant.
5.NounA substance or preparation for rendering cloth, leather, etc., impervious to water.
6.NounCloth made waterproof, or any article made of such cloth, or of other waterproof material, as rubber; especially, an outer garment made of such material.