Noun
1. 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. a formal series of statements showing that if one thing is true something else necessarily follows from it
3. a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume)
4. (printing) an impression made to check for errors
5. a trial photographic print from a negative
6. the act of validating; finding or testing the truth of something
Verb
1. make or take a proof of, such as a photographic negative, an etching, or typeset
2. knead to reach proper lightness;
"proof dough"3. read for errors;
"I should proofread my manuscripts"4. activate by mixing with water and sometimes sugar or milk;
"proof yeast"5. make resistant to water, sound, errors, etc.;
"proof the materials against shrinking in the dryer"Adjective
1. (used in combination or as a suffix) able to withstand;
"temptation-proof""childproof locks"