Avouch
Avouch verb - To declare (something) to be true or genuine.
Usage example: a note from my doctor avouching that my medical condition did indeed disqualify me from gym class
Certify
Certify verb - To declare (something) to be true or genuine.
Usage example: experts certified the letter as indeed having been written by Abraham Lincoln
Mutual synonyms
Cite this Source
Certify and Avouch. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/avouch/certify
Avouch & Certify. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/avouch/certify>.
Certify or Avouch. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/avouch/certify.
Google Ngram Viewer shows how "avouch" and "certify" have occurred on timeline