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waterproofing

noun C2
  1. The treatment of something to make it waterproof. (countable, uncountable)
  2. A waterproof material. (countable, uncountable)

Plural waterproofings

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Words, meanings, pronunciations and translations from Wiktionary (CC BY-SA 4.0); how common each word is from wordfreq. Made into this dictionary by FluentPlex.