Synonyms for proof

noun

• the act of validating; finding or testing the truth of something
• any factual evidence that helps to establish the truth of something
• (printing) an impression made to check for errors
• 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)
• a trial photographic print from a negative

verb

• read for errors
• activate by mixing with water and sometimes sugar or milk
• knead to reach proper lightness
• make or take a proof of, such as a photographic negative, an etching, or typeset
• make resistant (to harm)

adjective

• (used in combination or as a suffix) able to withstand