42 entries under backup topic. ×

11
alternate(noun, adjective, person, cover, subject)
7
fill-in(noun, adjective, informal, reserve, substitute)
7
replacement(noun, adjective, person, reserve, agent)
5
deputy(noun, cover, agent, replacement, assistant)
5
pinch hitter(noun, expression, cover, informal, substitute)
5
understudy(noun, cover, reserve, substitute, replacement)
4
stand-in(noun, adjective, person, model, reserve)
4
assistant(reserve, agent, replacement, representative)
4
double(noun, verb, adjective, cover, reserve)
4
dummy(noun, model, replacement, alternative, alternate)
3
makeshift(substitute, replacement, alternative, alternate)
3
proxy(exchange, agent, replacement, replace, representative)
3
relief(reserve, substitute, replacement, alternate, stalwart)
2
agent(replacement, representative, alternative, assistant, alternate)
2
changeling(replacement, alternative, alternate, surrogate)
2
equivalent(substitute, replacement, alternative, alternate)
2
ghost writer(expression, replacement, alternative, alternate)
2
locum tenens(expression, replacement, alternative, alternate)
2
pinch-hitter(noun, reserve, substitute, replacement, alternate)
2
representative(agent, substitute, replacement, assistant, alternate)
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APASmart Define. (2016). sub thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sub/thesaurus/synonyms
ChicagoSmart Define. 2016. "sub thesaurus" https://smartdefine.org/sub/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, sub thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sub/thesaurus/synonyms>.
MLASmart Define. "sub thesaurus" 18 February 2016. Web. 22 September 2026. <https://smartdefine.org/sub/thesaurus/synonyms>