addendum
noun
ad·den·dum
ə-ˈden-dəm 
plural addenda
ə-ˈden-də
also addendums
also addendums
1
: a thing added : addition
2
: a supplement to a book
—often used in plural but singular in construction
Examples of addendum in a Sentence
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
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
Recent Examples on the Web
Begrudgingly, footnotes, addendums, hints, admissions, confessions, were offered.
—Charles E. Kraus, New York Daily News, 4 July 2025
The new addendums in the Human Relations chapter state that the village shall not assist immigration officers who do not have a criminal warrant, assist in information sharing, arrest or detain someone based solely on their immigration status.
—Richard Requena, Chicago Tribune, 1 Apr. 2025
An addendum to that environmental study examining the show’s potential impact was included when the City Council unanimously approved the event in February.
—Michael Slaten, Oc Register, 3 Apr. 2025
Night 2 also offered a fresh addendum to an existing favorite piece of animation: their signature skeleton’s wild chopper ride.
—Chris Willman, Variety, 22 Mar. 2025
See All Example Sentences for addendum
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Charles E. Kraus, New York Daily News, 4 July 2025
The new addendums in the Human Relations chapter state that the village shall not assist immigration officers who do not have a criminal warrant, assist in information sharing, arrest or detain someone based solely on their immigration status.
—Richard Requena, Chicago Tribune, 1 Apr. 2025
An addendum to that environmental study examining the show’s potential impact was included when the City Council unanimously approved the event in February.
—Michael Slaten, Oc Register, 3 Apr. 2025
Night 2 also offered a fresh addendum to an existing favorite piece of animation: their signature skeleton’s wild chopper ride.
—Chris Willman, Variety, 22 Mar. 2025
See All Example Sentences for addendum
Cite this Entry
“Addendum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/addendum. Accessed 14 Jul. 2025.
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