Affirm
Affirm verb - To state clearly and strongly.
Usage example: our business partner affirmed his trust in us, and we in turn promised not to let him down
Guarantee
Guarantee verb - To state clearly and strongly.
Usage example: I guarantee that this movie is better than the last one in the series
Affirm is a synonym for guarantee in pledge topic. You can use "Affirm" instead a verb "Guarantee", if it concerns topics such as affirmation.
Nearby Words: guaranteed, guarantor, guaranteeing
Mutual synonyms
Common collocations
Cite this Source
Guarantee and Affirm. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/affirm/guarantee
Affirm & Guarantee. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/affirm/guarantee>.
Guarantee or Affirm. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/affirm/guarantee.
Google Ngram Viewer shows how "affirm" and "guarantee" have occurred on timeline