Case harden
Steel and case harden are semantically related. In some cases you can use "Steel" instead a verb phrase "Case harden".
Steel
Steel verb - To fill with courage or strength of purpose.
Case harden and steel are semantically related. Sometimes you can replace phrase "Case harden" with "Steel", this terms are similar.
Cite this Source
Steel and Case harden. (2016). Retrieved 2026, August 09, from https://thesaurus.plus/related/case_harden/steel
Case harden & Steel. N.p., 2016. Web. 09 Aug. 2026. <https://thesaurus.plus/related/case_harden/steel>.
Steel or Case harden. 2016. Accessed August 09, 2026. https://thesaurus.plus/related/case_harden/steel.
Google Ngram Viewer shows how "case harden" and "steel" have occurred on timeline