1. (noun)proof, cogent evidence 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)proof a formal series of statements showing that if one thing is true something else necessarily follows from it
3. (noun)proof a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume)
4. (noun)proof, test copy, trial impression (printing) an impression made to check for errors
5. (noun)proof a trial photographic print from a negative
6. (adj)validation, proof, substantiation the act of validating; finding or testing the truth of something
7. (verb)proof(p) (used in combination or as a suffix) able to withstand "temptation-proof"; "childproof locks"
8. (verb)proof make or take a proof of, such as a photographic negative, an etching, or typeset
9. (verb)proof knead to reach proper lightness "proof dough"
10. (verb)proofread, proof read for errors "I should proofread my manuscripts"
11. (verb)proof activate by mixing with water and sometimes sugar or milk "proof yeast"
12. (verb)proof make resistant (to harm) "proof the materials against shrinking in the dryer"
Definitions of 'proof'
Webster 1913 Dictionary
1. (adj)proof used in proving or testing; as, a proof load, or proof charge
2. (adj)proof firm or successful in resisting; as, proof against harm; waterproof; bombproof
3. (adj)proof being of a certain standard as to strength; -- said of alcoholic liquors
4. (noun)proof any effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial
5. (noun)proof that degree of evidence which convinces the mind of any truth or fact, and produces belief; a test by facts or arguments that induce, or tend to induce, certainty of the judgment; conclusive evidence; demonstration
6. (noun)proof the quality or state of having been proved or tried; firmness or hardness that resists impression, or does not yield to force; impenetrability of physical bodies
7. (noun)proof firmness of mind; stability not to be shaken
8. (noun)proof a trial impression, as from type, taken for correction or examination; -- called also proof sheet
9. (noun)proof a process for testing the accuracy of an operation performed. Cf. Prove, v. t., 5
10. (verb)proof armor of excellent or tried quality, and deemed impenetrable; properly, armor of proof
Definition of proof 
