addendum

/əˈdendəm/ (bre, ipa) · /əˈdendəm/ (ame, ipa) · /ə-ˈden-dəm/ (ame, mw)

addendum — noun

  • addendumsingular
  • addendaplural

1. an extra section added after a document, report, speech, or book is already fini

1.名詞C1
釋義

an extra section added after a document, report, speech, or book is already finished, usually to give new details, a correction, or another explanation.

例句

The lawyer attached an addendum to the lease before Mina signed it.

addendum to + legal document

After new safety data arrived, the report included an addendum at the end.

同義詞
  • appendix

    usually a planned section at the end of a book or report, not something added later

  • annex

    more common in official or legal writing for a separate attached document

  • supplement

    broader and less tied to corrections or late additions to a text

文法句型

addendum + to + document

issue + an addendum

用法筆記

Usually used for formal written material such as contracts, reports, manuals, or speeches. Unlike an appendix, an addendum is often created after the main text is already complete.

常見錯誤

❌The editor added an addendum on the report.
✅The editor added an addendum to the report.
💡this noun normally takes 'to' when you name the main document.

2. an extra part, feature, or benefit joined to something else, especially in caref

2.名詞C1
釋義

an extra part, feature, or benefit joined to something else, especially in careful or formal writing.

例句

The herb garden was a cheerful addendum to the small back yard.

be an addendum to + place

A free dessert was a welcome addendum to our set lunch.

同義詞
  • addition

    the everyday word for something added; less formal and much more common

  • extra

    more informal and often used for optional things or treats

  • bonus

    suggests an unexpected benefit rather than a neutral added part

文法句型

addendum + to + noun phrase

be + an addendum + to + noun phrase

用法筆記

This broader sense is uncommon in everyday conversation and sounds more literary or formal than the simple noun 'addition.' Distinguish from sense 1, which is specifically about extra text added to a document.