Synonym: certify, check, confirm, demonstrate, document, establish, justify, show, substantiate, verify. Antonym: suppose. Similar words: approve, proverb, improved, approve of, improvement, provide, province, provoke. Meaning: [pruːv] 
v. 1. be shown or be found to be 2. establish the validity of something, as by an example, explanation or experiment 3. provide evidence for 4. prove formally; demonstrate by a mathematical, formal proof 5. put to the test, as for its quality, or give experimental use to 6. increase in volume 7. cause to puff up with a leaven 8. take a trial impression of 9. obtain probate of.
v. 1. be shown or be found to be 2. establish the validity of something, as by an example, explanation or experiment 3. provide evidence for 4. prove formally; demonstrate by a mathematical, formal proof 5. put to the test, as for its quality, or give experimental use to 6. increase in volume 7. cause to puff up with a leaven 8. take a trial impression of 9. obtain probate of. 
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1. Prove thy friend ere thou have need. 
2. Prove thy friends ere thou have need.
3. My tears, my grief it can only prove.
4. What are you trying to prove?
5. This scandal could prove seriously damaging to the government.
6. He's just saying that to prove a point .
7. Are you just doing this to prove a point?
8. You're wrong, and I can prove it.
9. If she gets ill again it could prove fatal.
10. Philosophers use logic to prove their arguments.
11. Tax-cutting proposals could prove irresistible to lawmakers.
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12. It is impossible to prove the existence of God.
13. I must prove his honesty.
14. Making the wrong decision could prove expensive.
15. They were not able to prove these suspicions.
16. This advice was to prove valuable.
17. Can you prove that what you say is true?
18. This information could prove useful.
19. Time can prove that I love you .
20. Can you prove your innocence ?
21. They hope this new evidence will prove her innocence.
22. Membership of the union could prove advantageous.
23. This new evidence will prove their innocence.
24. Some alternative treatments may prove highly beneficial.
25. Can you prove it to me?
26. There wasn't enough evidence to prove him guilty.
27. She was determined to prove everyone wrong.
28. He felt he needed to prove his point .
29. We could not prove he was concerned with the crime, so we had to release him.
30. Just give me a chance and I'll prove it to you.