55 entries under close topic. ×
| set(verb, form, support, calm) | |
| harden(verb, form, support, place) | |
| solidify(verb, form, place, set) | |
| congeal(verb, form, place, set) | |
| thicken(verb, form, place, set) | |
| jell(verb, set, fix, settle) | |
| freeze(verb, form, calm, set) | |
| strengthen(verb, support, dull, set) | |
| brace(noun, verb, calm, set) | |
| fortify(verb, support, set, fix) | |
| coagulate(verb, form, set, fix) | |
| reinforce(verb, support, set, fix) | |
| toughen(verb, support, set, fix) | |
| clot(verb, form, set, fix) | |
| firm(verb, calm, set, fix) | |
| fix(verb, calm, set, secure) | |
| cake(verb, set, fix, settle) | |
| crystallize(verb, form, set, fix) | |
| indurate(verb, dull, set, fix) | |
| ossify(verb, calm, set, fix) |
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| APA | Smart Define. (2015). stiffen thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/stiffen/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stiffen thesaurus" https://smartdefine.org/stiffen/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, stiffen thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/stiffen/thesaurus/synonyms>. |
| MLA | Smart Define. "stiffen thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/stiffen/thesaurus/synonyms> |