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as in to toughen
to increase the ability of (as a muscle) to exert physical force arm muscles that were hardened by all the years of casting and hauling his fishing nets

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as in to stiffen
to make more harsh, uncompromising, or severe the government hardened restrictions on travel to and from the war-torn nation

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Cite this Entry

“Harden.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/harden. Accessed 25 Jul. 2024.

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