| proof | (noun) the act of validating; finding or testing the truth of something | Synonyms: substantiation, validation |
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| (noun) a trial photographic print from a negative | - |
| (noun) any factual evidence that helps to establish the truth of something | Synonyms: cogent evidence |
| (noun) a formal series of statements showing that if one thing is true something else necessarily follows from it | - |
| (noun) (printing) an impression made to check for errors | Synonyms: test copy, trial impression |
| (noun) a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume) | - |
| proofreader | (noun) someone who reads proof in order to find errors and mark corrections | Synonyms: reader |
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