108 entries under extra topic. ×

1
odd(adjective, replacement, standby)
1
one more(expression, adjective, extraordinary, new, spare)
1
optional(adjective, extraordinary, new, spare, fresh)
1
over and above(expression, adjective, idiom, extraordinary, new)
1
provisional
1
redundant(adjective, extraordinary, new, spare, fresh)
1
replacement(noun, adjective, new, spare, reserve)
1
special(adjective, extraordinary, new, spare, fresh)
1
stopgap(supply, agent, replacement, alternate)
1
tip(adjective, extraordinary, new, spare, fresh)
1
unnecessary(adjective, extraordinary, new, spare, fresh)
1
unneeded(adjective, extraordinary, new, spare, fresh)
1
unused(adjective, extraordinary, new, spare, fresh)
0
accoutrement(noun, part, addition, extension)
0
add-on(noun, adjective, addition, additional)
0
annex(noun, part, addition, extension)
0
artificial
0
counterfeit
0
de trop(expression, adjective, replacement, standby)
0
different(adjective, new, replacement, additional)
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APASmart Define. (2015). auxiliary thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/auxiliary/thesaurus/synonyms
ChicagoSmart Define. 2015. "auxiliary thesaurus" https://smartdefine.org/auxiliary/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, auxiliary thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/auxiliary/thesaurus/synonyms>.
MLASmart Define. "auxiliary thesaurus" 22 December 2015. Web. 26 September 2026. <https://smartdefine.org/auxiliary/thesaurus/synonyms>