To harden and Toughen

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Definitions of To harden not found.

Toughen and to harden are semantically related. In some cases you can use "Toughen" instead a verb phrase "To harden".

Toughen verb - To increase the ability of (as a muscle) to exert physical force.

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To harden and toughen are semantically related. Sometimes you can replace phrase "To harden" with "Toughen", this terms are similar.

Nearby Words: tough, toughness, toughening, tougher

Cite this Source

Toughen and To harden. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/to_harden/toughen

To harden & Toughen. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/to_harden/toughen>.

Toughen or To harden. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/to_harden/toughen.

Google Ngram Viewer shows how "to harden" and "toughen" have occurred on timeline