Attest
Attest verb - To declare (something) to be true or genuine.
Usage example: the appraiser attests that the lamp is indeed an original Tiffany
Testify
Testify verb - To make a solemn declaration under oath for the purpose of establishing a fact.
Usage example: several witnesses testified that they had seen the accused in the vicinity of the crime scene
Mutual synonyms
Cite this Source
Testify and Attest. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/attest/testify
Attest & Testify. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/attest/testify>.
Testify or Attest. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/attest/testify.
Google Ngram Viewer shows how "attest" and "testify" have occurred on timeline