Simple Definition of addendum
: something that is added; especially : a section of a book that is added to the main or original text
Examples of addendum
Francine du Plessix Gray, in an essay first written in 1991 and updated with an addendum here, writes eloquently of a lifelong obsession with weight loss, stemming from the harsh judgments of a mother enraptured by fashion. —Ginia Bellafante, New York Times Book Review, 21 Sept. 2008
This qualification, however, is not a recent addendum to Derrida's career. In 1990, near the end of the period in which rhetoric and composition had a strong interest in his work, Derrida participated in an editor's interview … in which he characterized his project as fundamentally tied to the tradition it works both within and against. —College English, September 2006
The letters are included as an addendum to the biography.
<there's an addendum from the author to explain certain stylistic choices that she made>
Origin of addendum
Latin, neuter of addendus, gerundive of addere
First Known Use: 1684
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