37 entries under extra topic. ×

13
substitute(noun, adjective, present, short, reserve)
8
tentative(adjective, new, unsettled, trial)
4
alternative(crude, substitute, replacement, alternate)
4
experimental(adjective, new, unsettled, trial)
3
dummy(replacement, alternative, alternate, auxiliary)
3
ersatz(crude, auxiliary, substitution, supernumerary)
2
imitation(auxiliary, supernumerary)
2
mock(auxiliary, supernumerary)
2
proxy(replacement, alternative, alternate, auxiliary)
2
reserve(substitute, replacement, alternate, stalwart)
2
standby(noun, reserve, substitute, replacement)
2
surrogate(adjective, substitute, replacement, alternative)
2
vicarious(auxiliary, supernumerary)
1
backup(reserve, substitute, replacement, alternative)
1
counterfeit(auxiliary, supernumerary)
1
auxiliary(substitute, replacement, alternative, alternate)
1
replacement(reserve, substitute, alternate, stalwart)
1
representative(replacement, alternative, alternate, auxiliary)
0
additional(auxiliary, supernumerary)
0
ancillary(substitute, auxiliary, supernumerary)
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APASmart Define. (2016). temporary thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/temporary/thesaurus/synonyms
ChicagoSmart Define. 2016. "temporary thesaurus" https://smartdefine.org/temporary/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, temporary thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/temporary/thesaurus/synonyms>.
MLASmart Define. "temporary thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/temporary/thesaurus/synonyms>