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
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
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
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
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
Recent Examples of Synonyms for addendum
Noun
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Their analysis, which includes seven figures, thirteen tables, six appendices, and nearly 25,000 words, revealed three main findings.—
Ge Bai,
Forbes.com,
28 Aug. 2025
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In a heartfelt Instagram post, the conservationist revealed the removal of 51 endometriosis lesions, a chocolate cyst, her appendix, and repair of a hernia from childbirth.—
Khloe Quill,
FOXNews.com,
17 Aug. 2025
Noun
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The brutal shooting of conservative activist Charlie Kirk on a college campus shocked the nation and is forcing it to confront what appears to be an increase in political violence across the country.—
Carlie Procell,
USA Today,
14 Sep. 2025
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Labor Department data released on Thursday showed one of the biggest weekly increases in jobless claims in more than a year.—
John Towfighi,
CNN Money,
14 Sep. 2025
Noun
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In addition to grape stem cells, the fast-absorbing spray includes caffeine and antioxidant-rich arugula leaf extract to help keep fallout at bay.—
Sophia Panych,
Allure,
16 Sep. 2025
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In addition to its luxury suites the Four Seasons has eleven villas available for rental.—
Michael Goldstein,
Forbes.com,
16 Sep. 2025
Noun
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The expiring boost, implemented in Democrats’ Inflation Reduction Act under former President Joe Biden, applies to 22 million of the 24 million low- and middle-income Americans with plans through the ACA marketplace.—
Ramsey Touchberry,
The Washington Examiner,
11 Sep. 2025
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Approval would let Ripple operate as a federally regulated trust bank—a substantial legitimacy boost.—
Trefis Team,
Forbes.com,
11 Sep. 2025
Noun
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Overnight, Japan’s benchmark Nikkei 225 surpassed the 45,000 mark for the first time, leading gains in Asia-Pacific markets.—
Chloe Taylor,Holly Ellyatt,
CNBC,
16 Sep. 2025
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The market has been on a particular tear in September in the leadup to the Fed meeting, as more moribund jobs data poured in – the S&P 500 has posted gains in six of nine sessions this month.—
David Goldman,
CNN Money,
15 Sep. 2025
Cite this Entry
“Addendum.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/addendum. Accessed 17 Sep. 2025.
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