68 entries under harden topic. ×

1
tauten(verb, strengthen, reinforce, thicken)
1
tense(verb, strengthen, reinforce, thicken)
1
turn to stone(expression, idiom, solidify)
0
casehardened(close, set, firm, dry)
0
clarify
0
make hard(expression, solidify)
0
mineralize
0
turn into stone(expression, idiom, solidify)
11 years ago|2.6k views|share |citing 
APASmart Define. (2015). ossify thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/ossify/thesaurus/synonyms
ChicagoSmart Define. 2015. "ossify thesaurus" https://smartdefine.org/ossify/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, ossify thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/ossify/thesaurus/synonyms>.
MLASmart Define. "ossify thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/ossify/thesaurus/synonyms>