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proofing

[ proo-fing ]
/ ˈpru fɪŋ /
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noun
the act or process of making a thing resistant, as in waterproof fabrics or fireproof material.
any chemical used in the manufacture of a substance to make it proof against water, fire, etc.
QUIZ
SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
Should you take this quiz on “shall” versus “should”? It should prove to be a quick challenge!
Question 1 of 6
Which form is used to state an obligation or duty someone has?

Origin of proofing

First recorded in 1900–05; proof + -ing1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use proofing in a sentence

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