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- DictionaryWa·ter·proof/ˈwôdərˌpro͞of/
adjective
- 1. impervious to water: "a waterproof hat"
noun
- 1. a garment, especially a coat, that keeps out water: British "she put on boots and a waterproof"
verb
- 1. make impervious to water: "a plastic case waterproofs this disposable camera"
The meaning of WATERPROOF is impervious to water; especially : covered or treated with a material (such as a solution of rubber) to prevent permeation by water. How to use waterproof in a sentence.
If something is waterproof, it means it is completely impervious or resistant to water—water won’t damage it, penetrate it, or otherwise change it. Sometimes, there’s no harm in getting wet, but water can damage things (like electronics) or make them uncomfortable (like socks).
WATERPROOF definition: 1. not allowing water to go through: 2. to put a special substance on the surface of something…. Learn more.
If you're British, you might also use waterproof as a noun, to mean a waterproof rain coat. Definitions of waterproof. adjective. not permitting the passage of water. synonyms: rainproof, waterproofed. tight. of such close construction as to be impermeable. verb. make watertight.
Define waterproof. waterproof synonyms, waterproof pronunciation, waterproof translation, English dictionary definition of waterproof. adj. 1. Impervious to or unaffected by water. 2. Made of or coated or treated with rubber, plastic, or a sealing agent to prevent penetration by water.
Something which is waterproof does not let water pass through it. Take waterproof clothing–Orkney weather is unpredictable. Designed to be completely waterproof, the lights are manufactured from heavy duty plastic.
waterproof. adjective. /ˈwɔːtəpruːf/. /ˈwɔːtərpruːf/. that does not let water through or that cannot be damaged by water. waterproof clothing. a waterproof camera. Treat them with oil to make them waterproof. a waterproof jacket.
There are five meanings listed in OED's entry for the word waterproof. See ‘Meaning & use’ for definitions, usage, and quotation evidence.
Waterproof material or clothing does not let water through: a waterproof sleeping bag (Definition of waterproof from the Cambridge Learner's Dictionary © Cambridge University Press)
Waterproof Definition. Impervious to or unaffected by water. That keeps out water completely; esp., treated with rubber, plastic, etc. so that water will not penetrate. Waterproof material.
