54 entries under supplement topic. ×

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added ingredient(noun, expression, attachment, add-ons)
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afterthought
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aggrandizement(noun, extra, appendage)
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annex(noun, increase, extra, addition, attachment)
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augmentation(noun, extra, addition, appendage)
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bonus(noun, extra, addition, appendage)
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boost(noun, extra, appendage)
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codicil(noun, increase, extra, addition)
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commission(noun, extra, appendage)
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complement(noun, increase, extra, addition, attachment)
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dividend(noun, extra, appendage)
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enhancement(noun, increase, extra, addition)
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enlargement(noun, extra, appendage)
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expansion(noun, extra, appendage)
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extravagance(noun, extra, addition)
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flavor enhancer(noun, expression, attachment, add-ons)
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frill(noun, extra, addition, attachment, decoration)
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hike(noun, extra, appendage)
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increase(noun, extra, addition, appendage)
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increment(noun, increase, extra, addition)
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APASmart Define. (2015). add-on thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/add-on/thesaurus/synonyms
ChicagoSmart Define. 2015. "add-on thesaurus" https://smartdefine.org/add-on/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, add-on thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/add-on/thesaurus/synonyms>.
MLASmart Define. "add-on thesaurus" 22 December 2015. Web. 28 September 2026. <https://smartdefine.org/add-on/thesaurus/synonyms>