- Definitions|2
- Thesaurus|496
- Abbreviations|0
| accession | |
| accretion | |
| acting(extra, auxiliary) | |
| add-on(noun, addition, supplement) | |
| additament | |
| additum | |
| adscisuperfluous | |
| adscititious | |
| adventitious | |
| alternate(extra, auxiliary) | |
| alternative(extra, additional, auxiliary, another) | |
| annexe | |
| appearance | |
| appelidage | |
| appendage(noun, addition, supplement) | |
| appurtenance(noun, addition, supplement) | |
| artificial(extra, auxiliary) | |
| attachment(noun, addition, supplement) | |
| backing | |
| backup(adjective, reserve, extra, replacement, temporary) |
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| APA | Smart Define. (2015). supernumerary thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/supernumerary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "supernumerary thesaurus" https://smartdefine.org/supernumerary/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, supernumerary thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/supernumerary/thesaurus/synonyms>. |
| MLA | Smart Define. "supernumerary thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/supernumerary/thesaurus/synonyms> |