variants
also addendums
1
as in appendixes
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
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in additions
something added (as by growth)
with each new addendum the list of demands simply got more absurd
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of addenda
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
Matariyeh’s lawyer William Walker had submitted Norgaard addendums to Mataryieh’s guilty pleas in August.
—Dale Morin, Twin Cities, 26 Nov. 2025
Before signing a lease agreement or any lease addendums, take time to carefully read through the terms.
—Tamia Fowlkes, jsonline.com, 20 Oct. 2025
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
Matariyeh’s lawyer William Walker had submitted Norgaard addendums to Mataryieh’s guilty pleas in August.
—Dale Morin, Twin Cities, 26 Nov. 2025
Before signing a lease agreement or any lease addendums, take time to carefully read through the terms.
—Tamia Fowlkes, jsonline.com, 20 Oct. 2025
Recent Examples of Synonyms for addenda
Noun
-
The final version is nearly 1,000 pages with an additional 1,600 pages in appendices.—
Lana Ferguson,
Dallas Morning News,
27 Jan. 2026
-
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
Noun
-
The pair are the latest new additions to the second season of the FX series, alongside Tommy Lee Jones, Betty Gilpin, and Austin Amelio.—
Joe Otterson,
Variety,
15 May 2026
-
Gasper is particularly thrilled about two newer additions to the club, veteran Willson Contreras and Carlos Narváez, who’s in his sophomore season.—
Gabrielle Starr,
Boston Herald,
15 May 2026
Noun
-
Subsequent modeling studies found that the change will mean more infections, increases in liver cancers and deaths, as well as millions of dollars in healthcare costs.—
Beth Mole,
ArsTechnica,
19 May 2026
-
Chance of lightning increases as a thunderstorm approaches and peaks when the storm is overhead.—
STAR-TELEGRAM WEATHER BOT,
Fort Worth Star-Telegram,
19 May 2026
Cite this Entry
“Addenda.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/addenda. Accessed 23 May. 2026.
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