Proof | Mean of proof in English Dictionary

/ˈpruːf/

• Noun
• something which shows that something else is true or correct
1. The document was proof that her story was true.
2. He claims that he was home when the murder was committed, but he has no proof.
3. The photograph is proof positive [=definite proof] that the accident happened the way he described.
4. I'm living proof that success is possible. [=my success shows that other people can succeed too]
5. The evidence gave proof of her statement. [=the evidence proved her statement]
6. Do you have any proof of identity?
7. Keep the receipt as proof of purchase. [=evidence showing/proving that you bought something]
• an act or process of showing that something is true
1. The burden of proof [=the need to show that something is true] is on the prosecuting lawyer of the case.
• a test which shows that a calculation is correct
1. The proof shows that the theorem is true.
2. mathematical proofs

• a copy of something that is going to be printed which is examined and used to make corrections before the final printing is done
1. He edited the proofs of the manuscript.
• a measurement of how much alcohol is in an alcoholic drink
1. The whiskey is 80 proof.
• designed or made to prevent or protect against something harmful
1. The seal of the bottle is proof against tampering. [=the seal prevents tampering]
2. waterproof
3. bulletproof