Definition

1. Noun:
   • Textual matter added to a publication: An "addendum" is a section of text or information that is added to a book, document, or other publication, typically to provide supplementary details, corrections, or updates that were not included in the original version. It is usually placed at the end of the main work.

Usage

• An "addendum" is a formal term used primarily in academic, legal, and publishing contexts. It refers to a distinct, appended section, not minor inline edits. The plural form is "addenda" or, less commonly, "addendums."

Examples

• Noun:
  • The contract included an addendum to clarify the new delivery terms.
  • The second edition of the textbook features an addendum covering recent scientific discoveries.
  • Please review the addendum at the back of the report for the updated figures.

Advanced Usage

• "To be appended as an addendum": To be formally attached as a supplementary section.
  • The researcher's latest findings were appended as an addendum to the published paper.

Variants and Related Words

• Addenda (n): The standard plural form of "addendum."
  • All contract addenda must be signed by both parties.
• Appendix (n): A section of supplementary material at the end of a book, often containing detailed data or references. While similar, an "appendix" is often more integral and planned, whereas an "addendum" is more likely to be a later addition.
• Supplement (n): Something added to complete a thing or extend it. A broader term that can include "addendum."

Synonyms

• Appendix: A section of extra information at the end of a book or document.
• Postscript: An additional remark at the end of a letter, abbreviated as "P.S."; can be used figuratively for any late addition.
• Codicil: A supplement or addition to a will (a specific legal term).

Related Phrases

• In addendum: Contained within or as part of an addendum.
  • The corrections are listed in addendum A.

Noun

1. textual matter that is added onto a publication; usually at the end