Synonym: attest, bear witness, evidence, prove, show, take the stand. Similar words: justify, testing, testimony, gratify, identify, test, stiff, protest. Meaning: ['testɪfaɪ] 
v. 1. give testimony in a court of law 2. provide evidence for.
v. 1. give testimony in a court of law 2. provide evidence for. 
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1. Mr Molto has agreed to testify at the trial.
2. I can testify to the credentials of the clientele.
3. They testify to the extraordinary potency of his personality.
4. I can testify to the foregoing since I was actually present when it happened.
5. The fingerprint expert was asked to testify at the trial.
6. The president's former aides were called to testify at his trial.
7. He was summoned to testify before a grand jury.
8. She refused to testify against her brother.
9. Witnesses must testify under oath.
10. She was unwilling to testify before Congress.
11. She was held in contempt for refusing to testify.
12. Witnesses are unwilling to testify through fear of reprisals.
13. She refused to testify against her husband.
14. His friends will testify for him.
15. Can you testify that you saw the defendant at the scene of the crime?
16. There are several witnesses who will testify for the defence.
17. The full ashtrays testify that smoking hasn't been stubbed out.
18. Ten witnesses are expected to testify at the trial today.
19. I can testify to this man's veracity and good character.
20. She refused to testify,[Sentencedict] unless the murder charge against her was dropped.
21. The empty shops in the high street testify to the depth of the recession.
22. Recent excavations testify to the presence of cultivated inhabitants on the hill during the Arthurian period.
23. The two youths today declined to testify because they said they feared for their safety.
24. The bundles of love letters testify to that.
25. Fuhrman did not testify in the civil trial.
26. He did not testify in the criminal case.
27. I've been called to testify at Smith's trial.
28. Too many young people are unable to write or spell well, as employers will testify.
29. A judicial enquiry was ordered, but witnesses were threatened and none would testify.
30. In the next three or four days, eleven witnesses will be called to testify.
More similar words: justify, testing, testimony, gratify, identify, test, stiff, protest, contest, question, estimate, domestic, estimated, in question, clandestine, suggestion, Palestinian, investigate, questionnaire, investigator, beyond question, investigation, out of the question, prestidigitation, modify, qualify, nullify, specify, diabetes, classify.