addendum

/əˈdɛndəm/
noun
  1. An extra piece of information added to a document, book, or report, often at the end.
    • The author included an addendum to the report with the latest data.
    • The textbook's addendum corrected several errors in the first printing.
    • Please read the addendum at the back of the contract before signing.
  2. Something that is added or appended, especially to improve or complete something.
    • The architect's addendum to the building plan added a new window.
    • The museum exhibit had an addendum with interactive displays.
    • Her speech included an addendum thanking the volunteers.
What does "addendum" mean? | whatsthatwordmean | whatsthatwordmean