45 entries under auxiliary topic. ×
| extra(adjective, place, increase, lower, new) | |
| supplementary(adjective, extraordinary, new, spare, fresh) | |
| supplemental(adjective, extraordinary, new, spare, fresh) | |
| accessory(noun, adjective, addition, subordinate, subsidiary) | |
| ancillary(adjective, extraordinary, new, spare, fresh) | |
| other(adjective, preposition, place, increase, extraordinary) | |
| secondary(adjective, place, lower, inferior, subordinate) | |
| another(adjective, preposition, place, extraordinary, new) | |
| subordinate(adjective, subsidiary, supplementary) | |
| supernumerary(adjective, extraordinary, new, spare, fresh) | |
| substitute(adjective, extra, alternative, supernumerary) | |
| alternate(adjective, extra, supernumerary) | |
| reserve(adjective, extraordinary, new, spare, fresh) | |
| second(adjective, counterfeit, spare, near, reserve) | |
| backup(adjective, counterfeit, near, reserve, extra) | |
| replacement(noun, adjective, counterfeit, new, spare) | |
| surrogate(adjective, extra, supernumerary) | |
| accompanying(adjective, extra, subordinate, subsidiary) | |
| acting(extra, supernumerary) | |
| artificial(extra, supernumerary) |
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| APA | Smart Define. (2015). additional thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/additional/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "additional thesaurus" https://smartdefine.org/additional/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, additional thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/additional/thesaurus/synonyms>. |
| MLA | Smart Define. "additional thesaurus" 30 July 2015. Web. 23 September 2026. <https://smartdefine.org/additional/thesaurus/synonyms> |