63 entries under supplement topic. ×

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adjunct(noun, increase, extra, addition, accessory)
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annex(noun, increase, extra, addition)
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appendage(noun, increase, extra, addition, accessory)
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appendix(noun, increase, extra, addition)
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appurtenance
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attachment(noun, extra, accessory, appendage)
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attendant
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attribute
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auxiliary
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balance(noun, rest, match, extra, foil)
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bonus(noun, extra, appendage, add-on)
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commission(noun, extra, appendage, add-on)
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companion(noun, rest, match, balance, extra)
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concomitant
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dividend(noun, extra, appendage, add-on)
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extra(noun, increase, addition, complement)
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option(noun, increase, extra, addition)
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profit(noun, extra, appendage, add-on)
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raise(noun, increase, rise, growth, lift)
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rest(noun, match, balance, extra, foil)
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APASmart Define. (2015). enhancement thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/enhancement/thesaurus/synonyms
ChicagoSmart Define. 2015. "enhancement thesaurus" https://smartdefine.org/enhancement/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, enhancement thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/enhancement/thesaurus/synonyms>.
MLASmart Define. "enhancement thesaurus" 22 December 2015. Web. 28 September 2026. <https://smartdefine.org/enhancement/thesaurus/synonyms>