# waterproofing

/ˈwɔtɝˌpɹufɪŋ/ (US) · /wˈɔːtəpɹˌuːfɪŋ/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/waterproofing
Updated: 2026-10-18

## Definition

making something stop water from getting through, like a coat, roof, or basement wall. You do it to keep things dry in rain or under water.

For teachers: the process or treatment that makes a material or structure impervious to water. Often refers to coatings, membranes, or construction methods applied to roofs, basements, clothing, and electronic devices.

## Examples

- Good waterproofing keeps your feet dry in rain.
- The builder checks the bathroom waterproofing before laying the new tiles.
- Effective waterproofing of the old stone foundation requires careful sealing of every crack where groundwater might enter during heavy storms.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.