Support
Underpin
Underpin verb - To hold up or serve as a foundation for.
Usage example: the central beliefs that underpin a free society
Support is a synonym for underpin. You can use "Support" instead the word "Underpin" as a verb or a noun.
Nearby Word: underpinning
Mutual synonyms
Cite this Source
Underpin and Support. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/support/underpin
Support & Underpin. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/support/underpin>.
Underpin or Support. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/support/underpin.
Google Ngram Viewer shows how "support" and "underpin" have occurred on timeline