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
Relevance
Antonyms & Near Antonyms
2
as in increase
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
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of addendum
The devices had previously covered additional areas, including parts of Old Louisville, Smoketown, Newburg, Jacobs and Taylor Berry according to a map attached to a contract addendum signed by LMPD Chief Paul Humphrey last year.
—
Josh Wood, Louisville Courier Journal, 2 Mar. 2026
Lawyers at the Office of Policy and Strategy were frequently told to remove their findings from the main text of agency documents and include them as an addendum.
—Jonathan Blitzer, New Yorker, 17 Feb. 2026
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
See All Example Sentences for addendum
Josh Wood, Louisville Courier Journal, 2 Mar. 2026
Lawyers at the Office of Policy and Strategy were frequently told to remove their findings from the main text of agency documents and include them as an addendum.
—Jonathan Blitzer, New Yorker, 17 Feb. 2026
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
See All Example Sentences for addendum
Recent Examples of Synonyms for addendum
Noun
-
Readers will find his email address in the book’s appendix, and Smat encourages people to share their story with him.—
Brayden Garcia
May 11,
Fort Worth Star-Telegram,
11 May 2026
-
Embiid came back from emergency appendix surgery mid-series, to help 76ers overcome a 3-1 series deficit.—
Sahil Kapur,
NBC news,
4 May 2026
Noun
-
That was the largest increase in the plant’s more than 30-year history, records show.—
Jason Henry,
Oc Register,
30 May 2026
-
Since 2019, the National Poison Data System has fielded a nearly 1,500% increase in calls related to overdoses or side effects from injectable weight loss drugs.—
Maia Rosenfeld,
NBC news,
29 May 2026
Noun
-
In addition to Crosby and Ramirez, the MEA committee is also supporting incumbents Kent Lee in District 6 and Henry Foster in District 4.—
David Garrick,
San Diego Union-Tribune,
27 May 2026
-
Lauer — who held the Rockies to one run and four hits in his six-inning Dodgers debut Tuesday — as the Dodgers beat the Rockies 15-6 — was a midseason addition as injuries thinned the team’s starting pitching depth.—
Maddie Lee,
Los Angeles Times,
27 May 2026
Noun
-
Other recent call-ups, like Nick Sogard and Mickey Gasper, have also given the lineup a boost.—
Mac Cerullo,
Boston Herald,
30 May 2026
-
Dell said Thursday that its server unit had gotten a massive boost from widening AI adoption, challenging analysts’ assessment that demand for the business was already reflected in the stock price.—
Liz Napolitano,
CNBC,
29 May 2026
Noun
-
Each productivity gain becomes a fresh opportunity for business owners to maximize their own gains while using the same technology to further control their employees.—
Christopher Marquis,
Time,
30 May 2026
-
In facilities processing millions of parcels each day, even small gains in efficiency can translate into significant operational and economic advantages.—
Christopher McFadden,
Interesting Engineering,
30 May 2026
Cite this Entry
“Addendum.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/addendum. Accessed 1 Jun. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
