From Longman Dictionary of Contemporary Englishtestifytes‧ti‧fy /ˈtestɪfaɪ/ ●○○ verb (testified, testifying, testifies) 1 [intransitive, transitive]SCL to make a formal statement of what is true, especially in a court of law Mr Molto has agreed to testify at the trial.testify against Later, the witness who had testified against Muawad withdrew his allegation.2 [intransitive, transitive] written to show clearly that something is the casetestify to The empty shops in the high street testify to the depth of the recession.testify that The full ashtrays testify that smoking hasn’t been stubbed out. Can you testify that you saw the defendant at the scene of the crime?3 [intransitive] American EnglishRRC to stand up and tell people about how God has helped you in your life SYN witness→ See Verb table
Examples from the Corpus
testify• Police had to guard him in hospital until he was well enough to testify.• Crowing begins at or just before the crack of dawn -- as my neighbours will testify.• Charges against Louima were later dropped, and he testified about his ordeal in three criminal trials.• The witness who had testified against him withdrew her allegation.• I'm prepared to testify in court that I was in Carolyn's apartment that night.• Anyone who knew him will gladly testify that he was a disaster behind a steering wheel.• Years later her parents made a sworn statement testifying that the couple had met in July 1917.• Even the houses now testify to this.testify that• Witnesses testified that Estrada kept multi-million-dollar bank accounts under false names and had profited from insider-trading.• In both trials, Erik testified that he killed out of fear.• Each of them will testify that in his opinion death in each instance was caused by gunshot wounds in the head.• She also testified that Irvin had terrorized her in an effort to make her recant her testimony against him.• Mrs. Morgan testified that she had been dragged by her husband from the bedroom which she shared with her small son.• Paul Ginsberg, an audiotape expert hired by Rosen, testified that the tape actually was made in four segments.• Other female officers have testified that they also suffered harassment in the department.• Several neighbors testified that they heard a strange noise that night.Origin testify (1300-1400) Latin testificari, from testis “witness” 