84 entries under extra topic. ×
| substitute(noun, adjective, support, cover, ability) | |
| auxiliary(noun, adjective, support, increase, lower) | |
| backup(noun, adjective, support, increase, lower) | |
| spare(noun, verb, adjective, support, keep) | |
| alternate(noun, adjective, cover, lower, inferior) | |
| alternative(spare, replacement, additional, alternate) | |
| unused(adjective, extraordinary, new, spare, fresh) | |
| emergency(adjective, increase, spare, replacement) | |
| in store(expression, adjective, extraordinary, new, spare) | |
| new(adjective, extraordinary, spare, fresh, special) | |
| perk(adjective, extraordinary, new, spare, fresh) | |
| provisional(auxiliary, supernumerary) | |
| proxy(noun, replacement, alternative, alternate) | |
| replacement(noun, adjective, cover, near) | |
| standby(noun, adjective, increase, substitute) | |
| additional(adjective, extraordinary, new, spare, fresh) | |
| ancillary(adjective, support, extraordinary, new, spare) | |
| counterfeit(auxiliary, supernumerary) | |
| dummy(replacement, alternative, alternate, auxiliary) | |
| ersatz(auxiliary, supernumerary) |
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| APA | Smart Define. (2015). reserve thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/reserve/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "reserve thesaurus" https://smartdefine.org/reserve/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, reserve thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/reserve/thesaurus/synonyms>. |
| MLA | Smart Define. "reserve thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/reserve/thesaurus/synonyms> |