| undergird(verb, hold, maintain, uphold, reinforce) | |
| upbear(verb, support, hold, maintain, promote) | |
| upholder(support, prop, pillar, backbone, bulwark) | |
| validate(verb, support, help, keep, maintain) | |
| verify(verb, support, help, keep, maintain) | |
| vitrify(verb, close, set, fix, settle) | |
| add(verb, support, increase, establish, extend) | |
| add fuel to fire(verb, expression, idiom, support, increase) | |
| add to(verb, expression, support, increase, sustain) | |
| advance | |
| afford support | |
| agency(noun, hold, block, back, base) | |
| alpenstock | |
| approve(verb, support, help, keep, maintain) | |
| arc-boutant | |
| ascend(verb, support, increase, establish, extend) | |
| athletic supporter | |
| attest | |
| authenticate | |
| backboned |
For more, visit
Buttress on
Power Thesaurus
| APA | Smart Define. (2015). buttress thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/buttress/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "buttress thesaurus" https://smartdefine.org/buttress/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, buttress thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/buttress/thesaurus/synonyms>. |
| MLA | Smart Define. "buttress thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/buttress/thesaurus/synonyms> |