testify
- 01 B2 Upper Intermediate
to make a formal statement in court, promising that what you say is true.
to give evidence as a witness in a court of law or before a judicial body, typically under oath.
Simple“The witness was nervous when she had to testify in court about the accident.”
In context“Several former employees agreed to testify against the corporation, providing crucial evidence regarding the safety violations.”
UsageThe verb is often followed by 'against' or 'on behalf of' a person.
Synonymsgive evidencebear witness - 02 C1 Advanced
to be clear proof that something is true or exists.
to serve as evidence or proof of a particular fact, quality, or situation.
Simple“His many awards testify to his hard work and talent over the years.”
In context“The high quality of the final product testifies to the meticulous attention to detail maintained throughout the manufacturing process.”
UsageUsually takes the preposition 'to'.
SynonymsAntonyms - 03 C1 Advanced
to speak openly about your personal experiences or religious beliefs.
to make a public statement about one's personal experiences, especially regarding religious faith or a transformative event.
Simple“During the meeting, several people stood up to testify about how the group helped them.”
In context“Members of the congregation were invited to testify to their experiences of spiritual healing during the Sunday service.”
UsageOften used intransitively in religious contexts.
Usage testify at the trial
“EM, however, testified that she was intoxicated and felt fearful of the men.”
“Photographs of the youngest Romanov daughter testify to her rich sense of humor.”
PIE word *tréyes From Middle English testifien, borrowed from Old French testifier, from Latin testificārī (“to bear witness”), from testis (“a witness”) + facere (“to make”). See -fy.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.