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 One day later, the DOJ revealed an addendum to the settlement that effectively shielded the plaintiffs and certain affiliates from any IRS enforcement regarding their past tax returns. — Kevin Breuninger, CNBC, 27 May 2026 Yet the addendum makes DeVaux a little weary. — Dana O’Neil, CNN Money, 9 May 2026 An addendum to team agreements outlines 14 highly specific marketing requirements—far more prescriptive than the general promotional language typically found in college sports event contracts. — Daniel Libit, Sportico.com, 20 Mar. 2026 Kharlamova, who plays Svetlana, expressed a similar sentiment in an addendum on her Instagram Story. — Jennifer Zhan, Vulture, 10 Mar. 2026 See All Example Sentences for addendum
Recent Examples of Synonyms for addendum
  1. appendix
  2. increase
  3. addition
  4. boost
  5. gain
Noun
  • Not because a new appendix deserves a barnstorming tour, or because county unemployment data has suddenly become beach reading.
    — Andrew Leahey, Forbes.com, 29 June 2026
  • The employment agreement includes an appendix that releases the university from all claims for incidents or events prior to the contract’s effective date.
    — Daniel Libit, Sportico.com, 27 June 2026
Definition of appendix
Noun
  • June was the deadliest month for Ukrainian civilians since April 2022, the United Nations said this week – an increase driven by long-range Russian missiles that have struck urban residential buildings.
    — Tim Lister, CNN Money, 16 July 2026
  • That hugely successful group also helped drive other major changes in the nation’s music-consumption habits, like an increase in CD sales.
    — Maya Georgi, Rolling Stone, 16 July 2026
Definition of increase
Noun
  • One way to begin is with the mental and physical reset provided by the Crossings Ceremony, the most recent addition to Miraval Austin’s Life in Balance Spa offerings.
    — Robb Report Studio, Robb Report, 16 July 2026
  • The coaching staff thought the talent the team inherited, with the addition of a few bargain signings, was better than the numbers showed.
    — Danielle Allentuck, Washington Post, 16 July 2026
Definition of addition
Noun
  • Try a trend-forward pair of glove flats to give your look an elevated boost, transforming your slouchy bottoms from low-key to downtown chic.
    — India Roby, Glamour, 15 July 2026
  • For formal events, heels from Kate Spade, Christian Louboutin, Jimmy Choo and Steve Madden, usually featuring a platform sole to offer her a boost.
    — Amina Ayoud, Footwear News, 15 July 2026
Definition of boost
Noun
  • Issues of potential fertility decline in this male population also need to be addressed, as well as signs of high testosterone including sleep issues, excess body hair, liver disease, weight gain and mood disorders.
    — Nina Shapiro, Forbes.com, 18 July 2026
  • But without housing, any gains from those programs could be short-lived, Montalvo said.
    — Amber Gaudet July 18, Charlotte Observer, 18 July 2026
Definition of gain

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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 18 Jul. 2026.

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