52 entries under develop topic. ×

21
set(verb, form, support, calm, close)
20
harden(verb, form, support, close, place)
20
solidify(verb, form, close, place, set)
17
congeal(verb, form, close, place, set)
15
thicken(verb, form, close, place, set)
10
freeze(verb, form, calm, close, set)
10
strengthen(verb, support, dull, close, set)
9
coagulate(verb, form, close, set, fix)
7
clot(verb, form, close, set, fix)
5
crystallize(verb, form, close, set, fix)
5
indurate(verb, dull, close, set, fix)
5
steel(verb, dull, close, set, fix)
3
gel(verb, form, set, fix)
2
callous(verb, dull, close, set, fix)
2
condense(verb, form, set, fix)
2
numb(verb, dull, rough, adjust)
1
acclimate(verb, dull, close, set)
1
acclimatize(verb, dull, close, set)
1
accustom(verb, dull, rough, adjust)
1
adapt(verb, dull, rough, adjust)
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APASmart Define. (2015). stiffen thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/stiffen/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiffen thesaurus" https://smartdefine.org/stiffen/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, stiffen thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/stiffen/thesaurus/synonyms>.
MLASmart Define. "stiffen thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/stiffen/thesaurus/synonyms>