0 past simple and past participle of testify
1 to speak seriously about something, especially in a law court, or to give or provide proof:
I can testify to the foregoing since I was actually present when it happened.
They were subpoenaed to testify before the judge.
No doubt, this unusual grouping of high officials testified to the emergency status of the situation.
Subsequent events testified that the journal's anticipatory readjustment was indeed founded on a good guess.
Moreover, the increase in precision can be considerable, as testified by the percentages of benchmarks falling in the higher precision classes.
Different kinds of witnesses testified in hearings on different biotechnology applications.
Eyewitnesses testified that he received gifts from residents who did not want their names to be reported as violators of sanitary laws.
