1
seconder
1
sectary
1
sentry(noun, control, duty, reliable, responsible)
1
sider
1
spared
1
sparer
1
spear-carrier
1
sponsor
1
stopgap(supply, extra, agent, replacement, alternate)
1
succedaneum(supply, agent, replacement, alternative, alternate)
1
supe
1
super
1
supplanter(supply, agent, replacement, alternative, alternate)
1
supply(agent, replacement, alternative, alternate, backup)
1
supporting actor
1
supporting cast
1
sympathiser
1
sympathizer
1
temp(noun, supply, reserve, substitute, replacement)
1
temporary expedient(expression, supply, agent, replacement, alternate)
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APASmart Define. (2015). standby thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/standby/thesaurus/synonyms
ChicagoSmart Define. 2015. "standby thesaurus" https://smartdefine.org/standby/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, standby thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/standby/thesaurus/synonyms>.
MLASmart Define. "standby thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/standby/thesaurus/synonyms>