- Definitions|1
- Thesaurus|201
- Abbreviations|0
20 entries under reserve topic. ×
| substitute(noun, person, cover, substitute) | |
| alternate(noun, person, copy, substitute) | |
| relief(noun, replacement, alternative, alternate) | |
| replacement(noun, adjective, person, substitute) | |
| stand-in(noun, adjective, person, substitute) | |
| backup(noun, adjective, copy, substitute) | |
| double(noun, adjective, substitute, replacement) | |
| sub(noun, adjective, informal, substitute) | |
| understudy(noun, cover, substitute, replacement) | |
| deputy(noun, cover, substitute, replacement) | |
| standby(noun, cover, substitute, replacement) | |
| temporary(noun, substitute, replacement, alternate) | |
| temp(noun, substitute, replacement, alternate) | |
| assistant(replacement, alternative, alternate, backup) | |
| cover(substitute, fallback) | |
| pinch-hitter(replacement, alternative, alternate, backup) | |
| resource(substitute, replacement, alternative, alternate) | |
| successor(noun, cover, replacement, alternative) | |
| fallback | |
| stalwart |
For more, visit
Fill-in on
Power Thesaurus
| APA | Smart Define. (2015). fill-in thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/fill-in/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "fill-in thesaurus" https://smartdefine.org/fill-in/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, fill-in thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/fill-in/thesaurus/synonyms>. |
| MLA | Smart Define. "fill-in thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/fill-in/thesaurus/synonyms> |