80 entries under solidify topic. ×

20
congeal(verb, form, close, place, set)
20
stiffen(verb, form, support, close, place)
18
set(verb, form, support, close, develop)
17
strengthen(verb, support, close, set, meet)
16
thicken(verb, form, close, place, set)
15
coagulate(verb, form, close, set, develop)
14
brace(noun, verb, support, close, set)
14
indurate(verb, adjective, close, set, settle)
13
cake(noun, verb, close, set, settle)
12
fortify(verb, support, close, set, strong)
12
freeze(verb, form, close, set, develop)
12
jell(verb, close, set, settle, firm)
12
reinforce(verb, support, close, set, increase)
12
temper(noun, verb, close, set, settle)
12
toughen(verb, support, close, set, increase)
11
ossify(verb, close, set, hard, settle)
9
consolidate(verb, support, close, place, set)
9
fix(verb, close, set, secure, settle)
9
petrify(verb, close, set, hard, settle)
9
steel(verb, support, close, set, increase)
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APASmart Define. (2016). harden thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/harden/thesaurus/synonyms
ChicagoSmart Define. 2016. "harden thesaurus" https://smartdefine.org/harden/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, harden thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/harden/thesaurus/synonyms>.
MLASmart Define. "harden thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/harden/thesaurus/synonyms>