1. testify
Our only witness is refusing to testify.
We noticed his reluctance to testify.
I can testify to that.
She'll never testify against him
To testify is to make a statement or provide evidence, usually in court. Witnesses testify for the prosecution or defense.
The victim didn’t testify at the trial.
I am not in a position to testify.
We speak that we do know, and testify that we have seen; and ye receive not our witness.
And I testify that this is the Son of God.
He came as a witness to testify concerning that light.
You yourselves can testify to what I said.