127 entries under set topic. ×
| solidify(verb, form, close, place) | |
| congeal(verb, form, close, place) | |
| stiffen(verb, form, support, close, place) | |
| strengthen(verb, support, close, meet) | |
| thicken(verb, form, close, place) | |
| coagulate(verb, form, close, develop) | |
| brace(noun, verb, support, close) | |
| indurate(verb, adjective, close, settle) | |
| cake(noun, verb, close, settle) | |
| fortify(verb, support, close, strong) | |
| freeze(verb, form, close, develop) | |
| jell(verb, close, settle, firm) | |
| reinforce(verb, support, close, increase) | |
| season(noun, verb, study, close) | |
| temper(noun, verb, close, settle) | |
| toughen(verb, support, close, increase) | |
| ossify(verb, close, hard, settle) | |
| consolidate(verb, support, close, place) | |
| fix(verb, close, secure, settle) | |
| petrify(verb, close, hard, settle) |
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| APA | Smart Define. (2016). harden thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/harden/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "harden thesaurus" https://smartdefine.org/harden/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, harden thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/harden/thesaurus/synonyms>. |
| MLA | Smart Define. "harden thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/harden/thesaurus/synonyms> |