247 entries under noun topic. ×
| substitute(adjective, agent, representative, alternative) | |
| alternate(adjective, lower, copy, inferior) | |
| stand-in(adjective, cover, reserve, substitute) | |
| reserve(adjective, support, increase, lower) | |
| support(adjective, help, increase, praise) | |
| backing(support, help, praise, benefit) | |
| relief(adjective, support, help, praise) | |
| surrogate(person, thing, agent, substitute) | |
| understudy(adjective, reserve, substitute, replacement) | |
| alternative(adjective, spare, extra, substitute) | |
| auxiliary(adjective, support, increase, lower) | |
| deputy(adjective, help, aid, reserve) | |
| replacement(adjective, reserve, extra, agent) | |
| spare(adjective, support, reserve, extra) | |
| fill-in(adjective, copy, reserve, substitute) | |
| patronage(support, help, benefit, aid) | |
| secondary(adjective, support, increase, spare) | |
| backup man(expression, idiom) | |
| double(adjective, reserve, substitute, replacement) | |
| aid(support, help, increase, praise) |
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| APA | Smart Define. (2015). backup thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/backup/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "backup thesaurus" https://smartdefine.org/backup/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, backup thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/backup/thesaurus/synonyms>. |
| MLA | Smart Define. "backup thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/backup/thesaurus/synonyms> |