103 entries under harden topic. ×

1
vitrify(verb, close, set, fix, settle)
0
become firm(verb, expression, fix)
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become hard(verb, expression, set)
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braze(verb, set)
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casehardened(close, set, firm, dry)
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clarify
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frost(freeze, chill, ice, refrigerate)
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get hard(verb, expression, set, freeze)
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inflate(verb, strengthen, reinforce, thicken)
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lapidify
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make hard
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mineralize
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mold(verb, set)
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nip(freeze, bite, chill, ice)
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press down(expression, firm)
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prop(verb, strengthen, reinforce, thicken)
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tamp(verb, firm, pack, squeeze)
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tauten(verb, strengthen, reinforce, thicken)
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tense(verb, strengthen, reinforce, thicken)
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toughen up(verb, expression, set)
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APASmart Define. (2016). solidify thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/solidify/thesaurus/synonyms
ChicagoSmart Define. 2016. "solidify thesaurus" https://smartdefine.org/solidify/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, solidify thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/solidify/thesaurus/synonyms>.
MLASmart Define. "solidify thesaurus" 5 February 2016. Web. 24 September 2026. <https://smartdefine.org/solidify/thesaurus/synonyms>