addendum

noun

ə-ˈden-dəm How to pronounce addendum (audio)
Definition of addendumnext
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

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 In a company addendum to the report, which did not identify its author, Blackbird appeared to rebut those questions. — Andrew Graham, Sacbee.com, 10 Aug. 2026 Review your vehicle sales paperwork Check the purchase agreement, dealer addendum, finance documents and service records. — Kurt Knutsson, FOXNews.com, 31 July 2026 But an addendum to that was that all support for the game, short of servers being shut off, was over. — Paul Tassi, Forbes.com, 7 July 2026 During discussions about elementary and middle school social studies curriculum, board members made addendums, including education about the horrors of communism, why the Second Amendment was created and how counterculture increased the rate of divorce. — Rachel Royster, Fort Worth Star-Telegram, 27 June 2026 See All Example Sentences for addendum
Recent Examples of Synonyms for addendum
  1. appendix
  2. increase
  3. addition
  4. boost
  5. gain
Noun
  • Aside from taking antibiotics, removal of the appendix via surgery is the most common treatment.
    — Edward Segarra, USA Today, 19 Aug. 2026
  • Typically affecting those ages 10 to 30, treatment usually involves antibiotics and generally surgery to remove the appendix.
    — Clare Fisher, PEOPLE, 19 Aug. 2026
Definition of appendix
Noun
  • Driving the increase in murder charges in fatal crashes are a few factors, Cherney and McClain agree.
    — Amanda Lee Myers, USA Today, 4 Sep. 2026
  • Over the past three months, international futures markets saw cocoa rise by more than 60% cumulatively, coffee gain over 30%, and raw sugar futures increase by nearly 30%.
    — , CNBC, 3 Sep. 2026
Definition of increase
Noun
  • While their new addition has been an adjustment for their twins, the proud parents share that their twins simply adore their baby brother.
    — Kayla Grant, PEOPLE, 2 Sep. 2026
  • Recreation and Parks General Manager Jimmy Kim told residents that installation of an approximately 8-foot fence was expected to begin this fall, followed by artistic and decorative additions through next spring.
    — Hanna Kang, Los Angeles Times, 2 Sep. 2026
Definition of addition
Noun
  • The bike also has a programmable control system that can provide functions such as boost, wheel-lift assistance, speed limiting and what Bonnell calls E-Clutch functionality (more on that later).
    — New Atlas, New Atlas, 2 Sep. 2026
  • Wichai Yuankham, 35, a factory worker who came to watch the ships arrive, said the naval visit was a welcome boost to the local economy.
    — Mosheh Gains, NBC news, 2 Sep. 2026
Definition of boost
Noun
  • Rucci caught a fourth-and-1 conversion pass from Adrian Martinez for a 10-yard gain to the Raiders’ 36, followed by James’ second-effort, 17-yard run.
    — Cam Inman, Mercury News, 28 Aug. 2026
  • In an interview with CNBC, OpenAI CEO Sam Altman emphasized the efficiency gains of the Sol model.
    — , CNBC, 28 Aug. 2026
Definition of gain

Browse Nearby Words

addenda
addendum
adder
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Cite this Entry

“Addendum.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/addendum. Accessed 4 Sep. 2026.

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