proof

[pruːf]

Definition:
1. Information, documents, etc. that show that something is true.
2. Any factual evidence that helps to establish the truth of something.

Use 'proof' in a sentence:

1. I don't want to make an accusation until I have some proof.
2. There is no conclusive proof.
3. Training is worthless unless there is proof that it works.
4. I'll need rock solid proof.
5. He'd seen the proof in black and white.
6. Only when each logical step has been checked by other mathematicians will the proof be accepted.
7. John brought the absolute proof that we needed.
8. She'd need proof to bring Jason to justice.
9. He is living proof that some players just get better with age.
10. This is not necessarily proof that he is wrong.
11. I'm correcting the proofs of the Spanish edition right now.
12. Milankovitch didn't have any proof.
13. She was checking the proofs of her latest novel.
14. We need to back that suspicion up with statistical proof.
15. Children are also considered proof of a man's virility.
16. His life was saved by a quarter-inch-thick bullet-proof vest.
17. There was no absolute proof.
18. The burden of proof is on the prosecution.
19. We must presume innocence until we have proof of guilt.
20. There was no proof of any kind.
21. You have to have proof of residence in the state of Texas, such as a Texas ID card.
22. There's no proof about the provenance of the painting.
23. Do you have any proof of identity?
24. There is no proof that the knife belonged to her.
25. He said that anyone trying to export goods without proof of ownership would have them seized.
26. Economists have been concerned with establishing proofs for their arguments.
27. You have no proof of my involvement in anything.
28. Her disappearance and death would give proof enough of Charles' guilt.
29. Newspapers seized on the results as proof that global warming wasn't really happening.
30. Now what we need is definite proof that we can lay before the prime minister.
31. We didn't have any definite proof.
32. The case was dismissed in the absence of any definite proof.
33. Keep the receipt as proof of purchase.
34. Keep your receipt as proof of purchase.
35. The buyer has to sign a delivery note as proof of receipt.
36. 'We need proof, sir.' Another pause. Then, 'Very well.'
37. "We need proof, sir." Another pause. Then, "Very well."
38. Is the claim capable of proof?
39. The sea wall was not proof against the strength of the waves.
40. These results are a further proof of his outstanding ability.
41. The batteries are designed to be leak-proof and hermetically sealed.
42. There was a vast distance between psychological clues and concrete proof.
43. The fortress was proof against the techniques of attack then in use.
44. Can you provide any proof of identity ?
45. This is proof positive that he stole the money.
46. He is living proof that not all engineers are boring.