Synonyms|25Antonyms|0|Broader|0Narrower|1Related|1
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subordinate(noun, addition, attachment)
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supernumerary(noun, addition, supplement)
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supplement(noun, extra, addition, attachment)
0
treat(noun, extra, addition, supplement)
0
trimming(noun, extra, addition, supplement)
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APASmart Define. (2013). optional extra thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/optional_extra/thesaurus/synonyms
ChicagoSmart Define. 2013. "optional extra thesaurus" https://smartdefine.org/optional_extra/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2013, optional extra thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/optional_extra/thesaurus/synonyms>.
MLASmart Define. "optional extra thesaurus" 17 May 2013. Web. 21 September 2026. <https://smartdefine.org/optional_extra/thesaurus/synonyms>