- Definitions|2
- Thesaurus|333
- Abbreviations|0
53 entries under expression topic. ×
| lie beneath(verb, underlie) | |
| pick up(strengthen, buttress) | |
| plump for(verb, phrasal verb) | |
| plunk for(verb, phrasal verb) | |
| punch up(strengthen, buttress) | |
| put up(verb, phrasal verb) | |
| remain true(verb, continue, stay, extend) | |
| soup up(strengthen, buttress) | |
| stand up(verb, continue, stay, extend) | |
| stand up for(idiom, strengthen, buttress) | |
| stay staunch(verb, continue, stay, extend) | |
| stretch out(verb, continue, stay, extend) | |
| support from beneath |
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| APA | Smart Define. (2015). underpin thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/underpin/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "underpin thesaurus" https://smartdefine.org/underpin/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, underpin thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/underpin/thesaurus/synonyms>. |
| MLA | Smart Define. "underpin thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/underpin/thesaurus/synonyms> |