Proofing

What does PROOFING mean?

Proofing is a form of PROOF.

1. noun

   any factual evidence that helps to establish the truth of something

   “if you have any proof for what you say, now is the time to produce it”

2. noun

   a formal series of statements showing that if one thing is true something else necessarily follows from it

3. noun

   a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume)

4. noun

   (printing) an impression made to check for errors

Definitions from WordNet 3.1, Princeton University.