Synonyms of testify

testify

verb

ˈte-stə-ˌfī 

as in to swear

to make a solemn declaration under oath for the purpose of establishing a fact

several witnesses testified that they had seen the accused in the vicinity of the crime scene

Synonyms & Similar Words

• swear
• witness
• attest
• verify
• bear witness
• depose
• promise
• vouch
• vow

Example Sentences

Recent Examples of testify

Jay Clayton, nominee to be director of national intelligence, testifies during his Senate Select Intelligence Committee confirmation hearing in Dirksen building on Wednesday, July 15, 2026. — Justin Papp,terri Cullen, CNBC, 3 Oct. 2026

The probe, which comes one day after top tech leaders signed a self-regulatory AI accord at the White House, could compel tech CEOs to testify before Congress. — Nicholas Wu, semafor.com, 2 Oct. 2026

The forensic pathologist who performed the autopsy on Alberto Sierra’s estranged wife and her two young daughters detailed on Friday their torturous final moments, testifying during Sierra’s death penalty trial. — Grethel Aguila, Miami Herald, 2 Oct. 2026

She was sentenced that September, per Law & Crime, and later testified against both her brother and mother, who were ultimately convicted for their roles in Matthew’s death. — Samantha Stutsman, PEOPLE, 26 Sep. 2026

Phrases Containing testify

• testify (to)