45 entries under reserve topic. ×

10
understudy(noun, adjective, substitute, replacement)
7
substitute(noun, cover, extra, alternative)
5
alternate(cover, supply, extra, replacement)
5
backup(noun, adjective, increase, extra)
5
replacement(noun, adjective, spare, extra)
4
auxiliary(noun, adjective, increase, spare, supply)
4
deputy(noun, adjective, substitute, replacement)
4
stalwart(noun, substitute, fallback)
4
stand-in(noun, adjective, substitute, replacement)
3
assistant(noun, substitute, replacement, alternate)
3
double(noun, cover, substitute, replacement)
3
emergency(noun, adjective, increase, spare)
3
extra(noun, adjective, spare, replacement)
3
fill-in(noun, cover, substitute, replacement)
3
secondary(adjective, increase, subsidiary, supportive)
3
spare(noun, adjective, extra, replacement)
3
successor(noun, cover, substitute, replacement)
2
relief(noun, substitute, replacement, alternate)
2
sub(noun, cover, substitute, replacement)
2
temporary(noun, extra, substitute, replacement)
<123>
11 years ago|2.6k views|share |citing 
APASmart Define. (2015). standby thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/standby/thesaurus/synonyms
ChicagoSmart Define. 2015. "standby thesaurus" https://smartdefine.org/standby/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, standby thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/standby/thesaurus/synonyms>.
MLASmart Define. "standby thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/standby/thesaurus/synonyms>