Waterproofing is the process of making an object or structure waterproof or water-resistant so that it remains relatively unaffected by water or resisting the ingress of water under specified conditions. Such items may be used in wet environments or underwater to specified depths.

What is the meaning of water proof?

: impervious to water especially : covered or treated with a material (such as a solution of rubber) to prevent permeation by water. waterproof.

Does waterproof mean it can go underwater?

Let's explore the differences between Waterproof and Water-Resistant. Waterproof means the bag can be submerged completely underwater for long periods of time, and there won't be one single drop of water that enters the interior. Think of a balloon, completely sealed off from the outside world.