Harden
Harden verb - To become physically firm or solid.
Prevent passage and harden are semantically related. In some cases you can use "Prevent passage" instead a verb "Harden".
Prevent passage
Harden and prevent passage are semantically related. Sometimes you can use "Harden" instead a verb phrase "Prevent passage".
Mutual synonyms
Cite this Source
Prevent passage and Harden. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/harden/prevent_passage
Harden & Prevent passage. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/harden/prevent_passage>.
Prevent passage or Harden. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/harden/prevent_passage.
Google Ngram Viewer shows how "harden" and "prevent passage" have occurred on timeline