| added(noun, addition, supplement) | |
| added feature(noun, expression, increase, extra, addition) | |
| added ingredient(noun, expression, attachment, supplement) | |
| addendums | |
| addition help(expression, addition, attachment) | |
| addition to(verb, phrasal verb) | |
| additional | |
| additional room(noun, expression, addition, wing, porch) | |
| additions | |
| adjective | |
| adjutant | |
| adverb | |
| adverbial | |
| advert | |
| advertisement | |
| affiliated | |
| affixes | |
| aggrandizement(noun, extra, supplement, appendage, add-on) | |
| aggrandizer | |
| along |
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| APA | Smart Define. (2015). addendum thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/addendum/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "addendum thesaurus" https://smartdefine.org/addendum/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, addendum thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/addendum/thesaurus/synonyms>. |
| MLA | Smart Define. "addendum thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/addendum/thesaurus/synonyms> |