| accouterment | |
| accretion(increase, rise) | |
| accrual(noun, increase, raise, rise, extra) | |
| actualize(verb, close, end, develop, determine) | |
| additament | |
| additum | |
| adjuvant | |
| adorn(verb, accompany) | |
| advance(verb, support, help, increase, cause) | |
| afterthought | |
| aggrandize(verb, take, cover, advance, increase) | |
| agree | |
| appendant | |
| attach(verb, accompany) | |
| back matter(noun, document) | |
| beef up(verb, expression, phrasal verb, support, take) | |
| bring to fruition(expression, idiom, close, end, develop) | |
| bring to maturity(expression, idiom, close, end, develop) | |
| build up(verb, expression, phrasal verb, support, advance) | |
| carry off(verb, expression, close, end, develop) |
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| APA | Smart Define. (2015). supplement thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/supplement/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "supplement thesaurus" https://smartdefine.org/supplement/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, supplement thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/supplement/thesaurus/synonyms>. |
| MLA | Smart Define. "supplement thesaurus" 22 December 2015. Web. 22 September 2026. <https://smartdefine.org/supplement/thesaurus/synonyms> |