Addendum
Addendum noun - A part added at the end of a book or periodical.
Usage example: there's an addendum from the author to explain certain stylistic choices that she made
Supplement
Supplement noun - Something added (as by growth).
Usage example: this new rule restricting e-mail to job-related activity is only a supplement to the preexisting policy regarding personal use of company resources
Addendum is a synonym for supplement in appendix topic. You can use "Addendum" instead a noun "Supplement", if it concerns topics such as something added. popular alternative
Mutual synonyms
Related pairs
- attachment and addendum
- attachment and supplement
- annex and addendum
- annex and supplement
- addition and addendum
- addition and supplement
- adjunct and addendum
- adjunct and supplement
- accessory and addendum
- accessory and supplement
- extension and addendum
- extension and supplement
- appendage and addendum
- appendage and supplement
How words are described
Cite this Source
Supplement and Addendum. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/addendum/supplement
Addendum & Supplement. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/addendum/supplement>.
Supplement or Addendum. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/addendum/supplement.
Google Ngram Viewer shows how "addendum" and "supplement" have occurred on timeline