74 entries under verb topic. ×

15
petrify(close, set, fix, hard)
11
harden(close, set, hard, settle)
10
stiffen(calm, close, set, fix)
9
fossilize(close, set, fix, hard)
6
congeal(close, set, fix, hard)
6
indurate(adjective, close, set, fix)
6
thicken(close, set, fix, hard)
5
calcify(close, set, fix, settle)
5
rigidify(harden, solidify)
5
temper(close, set, fix, settle)
5
toughen(close, set, fix, settle)
5
vitrify(close, set, fix, settle)
4
fossilise
4
freeze(calm, close, set, fix)
4
solidify(close, set, fix, hard)
3
anneal(close, set, fix, settle)
3
callous(adjective, close, set, fix)
3
firm(calm, close, set, fix)
2
amalgamate(close, set, fix, settle)
2
bake(close, set, fix, settle)
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APASmart Define. (2015). ossify thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/ossify/thesaurus/synonyms
ChicagoSmart Define. 2015. "ossify thesaurus" https://smartdefine.org/ossify/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, ossify thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/ossify/thesaurus/synonyms>.
MLASmart Define. "ossify thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/ossify/thesaurus/synonyms>