- Definitions|2
- Thesaurus|333
- Abbreviations|0
| pillar(strengthen, buttress) | |
| plump for(verb, expression, phrasal verb) | |
| plunk for(verb, expression, phrasal verb) | |
| potentiates | |
| potentiating | |
| powering | |
| preside(verb, continue, stay, extend, sustain) | |
| propping | |
| punch up(expression, strengthen, buttress) | |
| put up(verb, expression, phrasal verb) | |
| reinforcements | |
| reinforcing | |
| remain(verb, continue, stay, extend, sustain) | |
| remain true(verb, expression, continue, stay, extend) | |
| resist(verb, continue, stay, extend, sustain) | |
| run(verb, continue, stay, extend, sustain) | |
| safeguarding | |
| solemnize(verb, continue, stay, extend, sustain) | |
| soup up(expression, strengthen, buttress) | |
| stand up(verb, expression, continue, stay, extend) |
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| APA | Smart Define. (2015). underpin thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/underpin/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "underpin thesaurus" https://smartdefine.org/underpin/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, underpin thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/underpin/thesaurus/synonyms>. |
| MLA | Smart Define. "underpin thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/underpin/thesaurus/synonyms> |