Fortify
Firm up
Firm up verb - To become physically firm or solid.
Mutual synonyms
Cite this Source
Firm up and Fortify. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/fortify/firm_up
Fortify & Firm up. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/fortify/firm_up>.
Firm up or Fortify. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/fortify/firm_up.
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