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
Synonyms & Similar Words
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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
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
The Johnsons claim that’s at odds with a utility addendum in their lease.
—Nora O'Neill, Charlotte Observer, 8 Jan. 2026
See All Example Sentences for addendum
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
The Johnsons claim that’s at odds with a utility addendum in their lease.
—Nora O'Neill, Charlotte Observer, 8 Jan. 2026
See All Example Sentences for addendum
Recent Examples of Synonyms for addendum
Noun
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The doctors at Daso include an octogenarian who once mistook fat for an appendix and other doctors whose board certifications appear to be overstated.—
David J. Neal,
Miami Herald,
9 Mar. 2026
-
The appendix appears to have multiple functions, including immune and microbial ones.—
Lilia Goncharova,
The Conversation,
9 Mar. 2026
Noun
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Both variants feature rapid charging technology that remains effective even in harsh climates – at temperatures as low as −22°F, charging time increases by only about three minutes, CarNewsChina reported.—
Bojan Stojkovski,
Interesting Engineering,
14 Mar. 2026
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That divergence is largely the result of the fact that the consumer price index weighs housing inflation more heavily, and the rate of increases in rent has slowed alongside the overall economy.—
Arkansas Online,
Arkansas Online,
14 Mar. 2026
Noun
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The gift was designated to further advance and highlight essential and high-level glioblastoma research at UC San Diego, in addition to inspiring others to follow suit and ultimately contribute to this critical and developing area of medical research.—
Ashley Mackin Solomon,
San Diego Union-Tribune,
11 Mar. 2026
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The addition of Crosby was supposed to be the piece to help lift the Ravens over the top, with the draft picks expected to be part of a rebuilding effort for the Raiders.—
Los Angeles Times,
Los Angeles Times,
11 Mar. 2026
Noun
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But the initial boost to stocks of Archer, BETA, and rival Joby Aviation was short-lived.—
Andrew Edgecliffe-Johnson,
semafor.com,
13 Mar. 2026
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Now, climate change is giving these squatters a boost.—
Shi En Kim,
AZCentral.com,
13 Mar. 2026
Noun
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And yet, despite that, there had been the weight gain, just enough for the zipper on the Balenciaga to become her sworn enemy.—
Han Ong,
New Yorker,
15 Mar. 2026
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And while college enrollment and completion rates have improved districtwide, Black students haven’t seen the same gains.—
Kate Armanini,
Chicago Tribune,
14 Mar. 2026
Cite this Entry
“Addendum.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/addendum. Accessed 16 Mar. 2026.
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