B2verbformallaw
US/ˈtes.tə.faɪ/
UK/ˈtes.tɪ.faɪ/
to say what you know in a court of law; also to show clearly that something is true
In context
Two witnesses testified that they saw the driver run the red light.
She was too frightened to testify against her former boss.
The long queues testify to the restaurant's popularity.
Words that go with testify
verb + preposition
- testify againstHe agreed to testify against the gang leader.
- testify toHer many awards testify to her talent.
- testify in courtThe doctor was asked to testify in court about the injuries.
- testify beforeThe CEO testified before Congress about data privacy.
- testify under oathEvery witness must testify under oath.