- Definitions|1
- Thesaurus|185
- Abbreviations|0
64 entries under strengthen topic. ×
| buttress(calm, steady, soothe, fortify) | |
| establish | |
| fix(calm, sustain, steady, soothe) | |
| harden | |
| settle(calm, steady, soothe, decide) | |
| accent(verb, severe, exercise) | |
| accentuate(verb, severe, exercise) | |
| acclimate | |
| acclimatize | |
| add fuel(verb, severe, exercise) | |
| add to(verb, severe, exercise) | |
| aggrandize(verb, severe, exercise) | |
| aggravate(verb, severe, exercise) | |
| anneal | |
| assure | |
| augment(verb, severe, exercise) | |
| beef up(verb, expression, severe, exercise) | |
| boost(verb, severe, exercise) | |
| brighten(verb, severe, exercise) | |
| brutalize |
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| APA | Smart Define. (2015). firm up thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/firm_up/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "firm up thesaurus" https://smartdefine.org/firm_up/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, firm up thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/firm_up/thesaurus/synonyms>. |
| MLA | Smart Define. "firm up thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/firm_up/thesaurus/synonyms> |