1
as in appendix
a part added at the end of a book or periodical
there's an addendum from the author to explain certain stylistic choices that she made
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2
as in increase
something added (as by growth)
with each new addendum the list of demands simply got more absurd
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Example Sentences
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Recent Examples of addendum
County mayor Jerry Demings strongly urged commissioners to ratify the controversial addendum to that pact, which could result in county corrections officers driving detainees more than four hours to Alligator Alcatraz to be deported.
—
Stephen Hudak, The Orlando Sentinel, 5 Aug. 2025
Orange County Mayor Jerry Demings capitulated Friday by signing an addendum to the county’s agreement with ICE.
—Sun Sentinel Editorial Board, Sun Sentinel, 1 Aug. 2025
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
See All Example Sentences for addendum
Stephen Hudak, The Orlando Sentinel, 5 Aug. 2025
Orange County Mayor Jerry Demings capitulated Friday by signing an addendum to the county’s agreement with ICE.
—Sun Sentinel Editorial Board, Sun Sentinel, 1 Aug. 2025
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
See All Example Sentences for addendum
Recent Examples of Synonyms for addendum
Noun
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As part of the terms ending the four-year-long occupation, Washington required that Cuba integrate something called the Platt Amendment into an appendix of the island’s 1901 constitution.—
Miriam Pensack,
The Dial,
30 Sep. 2025
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Democrats has cast the appendix to his book as something of an enemies list, as Patel had previously said those listed should be investigated.—
The Hill Staff,
The Hill,
17 Sep. 2025
Noun
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In 2011, the Wisconsin State Legislature altered the property tax levy formula limits, eliminating the 2% ceiling that local municipalities could draw from taxpayers in places where new construction couldn't justify a larger levy increase.—
Jim Riccioli,
jsonline.com,
6 Oct. 2025
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Numbers provided by Cincinnati Public Schools show that the school district had 4,326 homeless students last year, representing a 77% increase from a decade prior, despite total student enrollment increasing by only 538 students over the same period of time.—
Elizabeth B. Kim,
Cincinnati Enquirer,
6 Oct. 2025
Noun
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So, too, was Monday night when the Panthers saw the latest addition to their jewelry collection during a private ceremony at the War Memorial Auditorium on the eve of their 2025-26 season opener against the Chicago Blackhawks.—
Jordan McPherson,
Miami Herald,
7 Oct. 2025
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Looks like a decent loan addition.—
Tim Spiers,
New York Times,
7 Oct. 2025
Noun
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Page’s wealth received a boost after a major antitrust case in 2024, when the Department of Justice asked Google to sell its Chrome browser to curb market dominance.—
Neetika Walter,
Interesting Engineering,
2 Oct. 2025
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The rind can also be blended into smoothies for an extra nutrient boost.—
Lauren Manaker MS,
Verywell Health,
2 Oct. 2025
Noun
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After the Dolphins reclaimed the lead at 24-20 on a Jaylen Waddle touchdown catch, Dowdle started the ensuing drive with a 16-yard gain but then limped to the sideline with cramps in both calves.—
Joseph Person,
New York Times,
6 Oct. 2025
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Although those companies have driven enormous market gains over the past several years, many Wall Street analysts fear that the AI market has become a bubble — powered by unsustainable gains that are driven more by FOMO than fundamentals.—
David Goldman,
CNN Money,
6 Oct. 2025
Cite this Entry
“Addendum.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/addendum. Accessed 8 Oct. 2025.
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