341 entries under verb topic. ×

21
set(form, support, calm, close)
20
harden(form, support, close, place)
20
solidify(form, close, place, set)
17
congeal(form, close, place, set)
15
thicken(form, close, place, set)
15
tighten(stretch, tense, brace, hunch)
13
jell(close, set, fix, settle)
10
freeze(form, calm, close, set)
10
strengthen(support, dull, close, set)
10
brace(noun, calm, close, set)
10
fortify(support, close, set, fix)
10
tense(stretch, hunch, harden, jellied)
9
coagulate(form, close, set, fix)
9
reinforce(support, close, set, fix)
9
toughen(support, close, set, fix)
8
tauten(stretch, tense, hunch, harden)
7
clot(form, close, set, fix)
7
constrain
7
firm(calm, close, set, fix)
7
fix(calm, close, set, secure)
<12345…10>
11 years ago|7.2k views|share |citing 
APASmart Define. (2015). stiffen thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stiffen/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiffen thesaurus" https://smartdefine.org/stiffen/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, stiffen thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stiffen/thesaurus/synonyms>.
MLASmart Define. "stiffen thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/stiffen/thesaurus/synonyms>