- Definitions|2
- Thesaurus|333
- Abbreviations|0
| cover | |
| crutch | |
| detain | |
| digest | |
| draw out(verb, expression, continue, stay, extend) | |
| embattle | |
| energize(strengthen, buttress) | |
| enforcing | |
| enlarge(strengthen, buttress) | |
| espousal | |
| espousing | |
| extend(verb, continue, stay, sustain, last) | |
| fend for(verb, expression, phrasal verb) | |
| fit | |
| function(verb, continue, stay, extend, sustain) | |
| give support to(verb, expression, idiom, phrasal verb, aid) | |
| harden(strengthen, buttress) | |
| have | |
| have bearing(verb, expression, continue, stay, extend) | |
| heat up(expression, strengthen, buttress) |
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| APA | Smart Define. (2015). underpin thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/underpin/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "underpin thesaurus" https://smartdefine.org/underpin/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, underpin thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/underpin/thesaurus/synonyms>. |
| MLA | Smart Define. "underpin thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/underpin/thesaurus/synonyms> |