Addendum

//əˈdɛn.dəm// noun

Definitions

Noun
  1. 1
    Something to be added; especially text added as an appendix or supplement to a document.

    "An addendum was added to the contract to clarify payment terms."

  2. 2
    textual matter that is added onto a publication; usually at the end wordnet
  3. 3
    A postscript.
  4. 4
    The height by which the tooth of a gear projects beyond (outside for external, or inside for internal) the standard pitch circle or pitch line.

Etymology

From the gerundive of Latin addere (“to add”).

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