77 entries under harden topic. ×

1
indurate(verb, close, set, fix, settle)
1
inflate(verb, strengthen, reinforce, thicken)
1
jelly(verb, form, set, develop, swell)
1
nerve(verb, close, set, fix, settle)
1
press(verb, close, set, fix, settle)
1
prop(verb, calm, fix, secure, strengthen)
1
steel(verb, close, set, fix, settle)
1
strengthen(verb, close, set, fix, settle)
1
tense(verb, strengthen, reinforce, thicken)
1
toughen(verb, close, set, fix, settle)
1
turn to ice(verb, expression, idiom, solidify)
1
vitrify(verb, close, set, fix, settle)
0
casehardened(close, set, firm, dry)
0
freeze over(verb, expression, ice)
0
freeze up(verb, expression, ice)
0
get hard(expression, set)
0
tauten(verb, strengthen, reinforce, thicken)
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APASmart Define. (2015). freeze thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/freeze/thesaurus/synonyms
ChicagoSmart Define. 2015. "freeze thesaurus" https://smartdefine.org/freeze/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, freeze thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/freeze/thesaurus/synonyms>.
MLASmart Define. "freeze thesaurus" 13 October 2015. Web. 30 September 2026. <https://smartdefine.org/freeze/thesaurus/synonyms>