- Definitions|2
- Thesaurus|574
- Abbreviations|0
80 entries under strengthen topic. ×
| strengthen(verb, support, close, set, fix) | |
| brace(verb, support, close, set, fix) | |
| harden(verb, support, close, set, increase) | |
| fortify(verb, support, close, set, fix) | |
| reinforce(verb, support, close, set, fix) | |
| temper(noun, verb, close, set, fix) | |
| acclimate(verb, close, set, keep, overcome) | |
| acclimatize(verb, close, set, fix, continue) | |
| anneal(verb, support, close, set, fix) | |
| invigorate(verb, support, increase, encourage, establish) | |
| season(verb, close, set, keep, overcome) | |
| stiffen(verb, support, close, set, fix) | |
| inure(verb, rough, prepare, scratch) | |
| buttress(verb, support, close, set, fix) | |
| support(verb, increase, establish, extend, sustain) | |
| develop(verb, scratch, harden, roughen) | |
| energize(verb, support, increase, sustain, uphold) | |
| prop(verb, support, increase, sustain, uphold) | |
| steel(verb, support, close, set, fix) | |
| consolidate(verb, support, close, set, fix) |
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| APA | Smart Define. (2015). toughen thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/toughen/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toughen thesaurus" https://smartdefine.org/toughen/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, toughen thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/toughen/thesaurus/synonyms>. |
| MLA | Smart Define. "toughen thesaurus" 13 April 2015. Web. 1 October 2026. <https://smartdefine.org/toughen/thesaurus/synonyms> |