What is the meaning of proof?

noun

• Any factual evidence that helps to establish the truth of something.
  • usage: "if you have any proof for what you say, now is the time to produce it"
  • synonyms: cogent evidence
• A formal series of statements showing that if one thing is true something else necessarily follows from it.
• A measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume. )
• Printing) an impression made to check for errors.
  • synonyms: test copy, trial impression
• A trial photographic print from a negative.
• The act of validating; finding or testing the truth of something.
  • synonyms: validation, substantiation

verb

• Make or take a proof of, such as a photographic negative, an etching, or typeset.
• Knead to reach proper lightness.
  • usage: "proof dough"
• Read for errors.
  • usage: "I should proofread my manuscripts"
  • synonyms: proofread
• Activate by mixing with water and sometimes sugar or milk.
  • usage: "proof yeast"
• Make resistant (to harm. )
  • usage: "proof the materials against shrinking in the dryer"

adjective

• Used in combination or as a suffix. ( able to withstand)
  • usage: "temptation-proof"; "childproof locks"