- Definitions|1
- Thesaurus|700
- Abbreviations|0
possible profanity
71 entries under strengthen topic. ×
| stiffen(verb, support, increase, sustain, uphold) | |
| stroke(verb, support, increase, boost, sustain) | |
| support(verb, increase, sustain, uphold) | |
| sustain(verb, support, increase, uphold) | |
| tone up(verb, expression, phrasal verb, increase, raise) | |
| toughen(verb, support, increase, boost, sustain) | |
| underline(verb, support, increase, boost, sustain) | |
| heap on(verb, expression, increase, severe) | |
| pile on(verb, expression, increase, severe) | |
| raise(verb, increase, severe, boost, exercise) | |
| underpin |
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| APA | Smart Define. (2015). heat up thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/heat_up/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "heat up thesaurus" https://smartdefine.org/heat_up/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, heat up thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/heat_up/thesaurus/synonyms>. |
| MLA | Smart Define. "heat up thesaurus" 17 July 2015. Web. 30 September 2026. <https://smartdefine.org/heat_up/thesaurus/synonyms> |