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.