68 entries under solidify topic. ×

2
precipitate(verb, close, set, fix, settle)
2
settle(verb, calm, close, set, fix)
2
stabilize(verb, calm, place, set, fix)
2
steady(verb, calm, place, set, fix)
2
vitrify(verb, close, set, fix, settle)
1
amalgamate(verb, close, set, fix, settle)
1
anneal(verb, close, set, fix, settle)
1
bake(verb, close, set, fix, settle)
1
become rigid(verb, expression, harden, thicken)
1
bite(freeze, chill, harden, nip)
1
calcify(verb, close, set, fix, settle)
1
compact(verb, close, set, fix, settle)
1
contract(verb, close, set, fix, settle)
1
densify(verb, close, set, fix, settle)
1
dry(verb, close, set, fix, settle)
1
fossilize(verb, close, set, fix, settle)
1
frost(freeze, chill, harden, ice)
1
gelate(verb, form, set, fix, develop)
1
gelatinize(verb, form, set, fix, develop)
1
inflate(verb, harden, thicken, congeal)
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APASmart Define. (2015). stiffen thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/stiffen/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiffen thesaurus" https://smartdefine.org/stiffen/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, stiffen thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/stiffen/thesaurus/synonyms>.
MLASmart Define. "stiffen thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/stiffen/thesaurus/synonyms>