[waw-ter-proo-fing, wot-er-]


a substance by which something is made waterproof.
the act or process of making something waterproof.

Nearby words

  1. watermeal,
  2. watermelon,
  3. watermill,
  4. waterpick,
  5. waterproof,
  6. waters,
  7. waters, muddy,
  8. waters, territorial,
  9. watersaver,
  10. waterscape

Origin of waterproofing

First recorded in 1835–45; waterproof + -ing1


[waw-ter-proof, wot-er-]


impervious to water.
rendered impervious to water by some special process, as coating or treating with rubber: a waterproof hat.


Chiefly British. a raincoat or other outer coat impervious to water.
any of several coated or rubberized fabrics that are impervious to water.

verb (used with object)

to make waterproof.

Origin of waterproof

First recorded in 1730–40; water + -proof

Related formswa·ter·proof·er, nounwa·ter·proof·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for waterproofing

British Dictionary definitions for waterproofing



not penetrable by waterCompare water-repellent, water-resistant


mainly British a waterproof garment, esp a raincoat

verb (tr)

to make (a fabric, item of clothing, etc) waterproof
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for waterproofing



1725, from water (n.1) + proof. The verb is first recorded 1843. Related: Waterproofed; waterproofing.

Online Etymology Dictionary, © 2010 Douglas Harper