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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Antonyms & Near Antonyms
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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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of addendum
Republicans framed the bathroom and driver’s license bill as an addendum clarifying the intent of a separate 2023 bill barring trans women from accessing female-only spaces.
—
Matthew Kelly, Kansas City Star, 13 Feb. 2026
The lease addendums are a mandatory part of rental agreements across Arizona and the nation.
—AZCentral.com, 4 Feb. 2026
The show is light on tech, but the accompanying images (video design by Stefano DeCarli) pour through as addendums to Felder’s puissant passion of Liszt’s Liebesträume or Beethoven’s Für Elise and land with great effect.
—David John Chávez, Mercury News, 30 Jan. 2026
Hurts waited a beat before offering an interesting addendum.
—Zach Berman, New York Times, 13 Jan. 2026
See All Example Sentences for addendum
Matthew Kelly, Kansas City Star, 13 Feb. 2026
The lease addendums are a mandatory part of rental agreements across Arizona and the nation.
—AZCentral.com, 4 Feb. 2026
The show is light on tech, but the accompanying images (video design by Stefano DeCarli) pour through as addendums to Felder’s puissant passion of Liszt’s Liebesträume or Beethoven’s Für Elise and land with great effect.
—David John Chávez, Mercury News, 30 Jan. 2026
Hurts waited a beat before offering an interesting addendum.
—Zach Berman, New York Times, 13 Jan. 2026
See All Example Sentences for addendum
Recent Examples of Synonyms for addendum
Noun
-
An inflamed appendix becomes a ruptured one, leading to systemic infection.—
Dr. Lauren Palladino,
Hartford Courant,
22 Mar. 2026
-
Amanda Gushue, 37, first visited her primary care physician — who sent her to the emergency department (ED) with a swollen appendix.—
Melissa Rudy,
FOXNews.com,
16 Mar. 2026
Noun
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This is an increase from the 31 arrests made during the same period last year.—
Bri Buckley,
CBS News,
21 Mar. 2026
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That represents an increase of nearly 2,000 spectators per outing, which equates to a 7% rise compared with the same point in 2024-25.—
Roderick Boone,
Charlotte Observer,
20 Mar. 2026
Noun
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In addition to 19,271 ballots cast early at in-person polling locations and 13,324 ballots received so far by mail, the county had topped 50,000 votes and counting on Tuesday afternoon, according to the numbers provided by Cunningham.—
Molly Morrow,
Chicago Tribune,
18 Mar. 2026
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In addition, visual fire alarms, elevator access to all floors, and a step-free main entrance provide guests with an accessibility-friendly experience.—
Condé Nast,
Condé Nast Traveler,
18 Mar. 2026
Noun
-
At present, scramjet engine development is one of the hardest engineering problems to solve, so any boost to that will be very useful indeed.—
Christopher McFadden,
Interesting Engineering,
21 Mar. 2026
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His challenge is finding a way to maximize the revenue boost from the oil price rise while cushioning the impact on the poorest people in a nation where around 60% of the population live below the World Bank’s poverty line.—
Alexis Akwagyiram,
semafor.com,
20 Mar. 2026
Noun
-
The Jayhawks’ loss has been the Red Storm’s program-altering gain.—
Peter Sblendorio,
New York Daily News,
21 Mar. 2026
-
As the days get longer and the sun gains strength, cocktails like the Bramble float back into our minds, as if compelled by the season.—
Jeremy Repanich,
Robb Report,
21 Mar. 2026
Cite this Entry
“Addendum.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/addendum. Accessed 23 Mar. 2026.
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