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waterproofing

American  
[waw-ter-proo-fing, wot-er-] / ˈwɔ tərˌpru fɪŋ, ˈwɒt ər- /

noun

  1. a substance by which something is made waterproof.

  2. the act or process of making something waterproof.


Etymology

Origin of waterproofing

First recorded in 1835–45; waterproof + -ing 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The combination will bring together QXO’s leading positions in roofing, waterproofing, lumber-related building materials, and associated products with TopBuild’s insulation capabilities.

From The Wall Street Journal • Apr. 20, 2026

Seabirds are especially at risk because oil destroyed the waterproofing of their feathers, leading to hypothermia and drowning.

From Barron's • Mar. 17, 2026

It was only this year when the owner of the building ordered some waterproofing work that the 16-year mystery could be solved.

From BBC • Sep. 24, 2024

However, researchers have found it challenging to achieve waterproofing without the use of extra layers that end up decreasing the flexibility of the film.

From Science Daily • Mar. 27, 2024

The cost of outside waterproofing was 4 cts. per square yard, distributed as follows: Material 2.5 cts.

From Concrete Construction Methods and Costs by Gillette, Halbert Powers