1

waterproof

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adjective wa·ter·proof \ˈwȯ-tər-ˌprüf, ˈwä-\

Definition of waterproof

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

waterproofness

noun

Examples of waterproof in a sentence

  1. This suntan lotion is waterproof.

  2. <luckily, my backpack is waterproof, so my clothes didn't get wet>

1736

First Known Use of waterproof

1736


2

waterproof

noun wa·ter·proof

Definition of waterproof

  1. 1 :  a waterproof fabric

  2. 2 chiefly British :  raincoat

Examples of waterproof in a sentence

  1. <remember your waterproof if you're walking around London in the winter>

1799

First Known Use of waterproof

1799


3

waterproof

verb wa·ter·proof

Definition of waterproof

  1. transitive verb
  2. :  to make waterproof

waterproofer

noun

Examples of waterproof in a sentence

  1. He waterproofed the deck by applying sealer to it.

1841

First Known Use of waterproof

1841


WATERPROOF Defined for English Language Learners

1

waterproof

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adjective wa·ter·proof \ˈwȯ-tər-ˌprüf, ˈwä-\

Definition of waterproof for English Language Learners

  • : designed to prevent water from entering or passing through

  • : designed so that water alone will not remove it


3

waterproof

verb wa·ter·proof

Definition of waterproof for English Language Learners

  • : to put a substance on (something) in order to make it waterproof


WATERPROOF Defined for Kids

1

waterproof

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adjective wa·ter·proof \ˌwȯ-tər-ˈprüf, ˌwä-\

Definition of waterproof for Students

  1. :  not letting water through <a waterproof tent>


2

waterproof

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verb wa·ter·proof

Definition of waterproof for Students

waterproofed

waterproofing

  1. :  to make something resistant to letting water through



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