- Definitions|2
- Thesaurus|574
- Abbreviations|0
170 entries under verb topic. ×
| mold(set, harden) | |
| naturalize | |
| protect(support, strengthen, reinforce) | |
| qualify | |
| ready(support, encourage, restore, uphold) | |
| school(prepare, qualify) | |
| secure(support, strengthen, reinforce, constrict) | |
| toughen up(expression, set, harden) | |
| train(rough, prepare, scratch, harden) | |
| treat |
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| APA | Smart Define. (2015). toughen thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/toughen/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toughen thesaurus" https://smartdefine.org/toughen/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, toughen thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/toughen/thesaurus/synonyms>. |
| MLA | Smart Define. "toughen thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/toughen/thesaurus/synonyms> |