1. items to be added; supplementary material added to a book or document
Usage: plural of addendum; formal

Examples

• The publisher included several addenda to correct errors in the first edition.
• Please review the addenda before finalizing the contract.
• The research paper contained important addenda with updated statistics.
• The addenda provided clarification on the new policy changes.
• Students should read both the main text and the addenda for complete understanding.
• The legal document’s addenda addressed concerns raised during negotiations.