What is another word for addendum?
Pronunciation: [ɐdˈɛndəm] (IPA) 
Addendum refers to an additional item of material added to a document or book. There are various synonyms for addendum that you can use to avoid repetition in your writing. These include appendix, supplement, attachment, postscript, annex, rider, afterthought, codicil, extension, and continuation. While these terms differ in their nuances, they all refer to supplementary material that complements or expands upon the main text. By using these synonyms, you can add variety and interest to your text while conveying the same meaning as addendum. Be sure to choose the most appropriate synonym depending on the context and purpose of your writing.
