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opus

American  
[oh-puhs] / ˈoʊ pəs /

noun

  • opuses,
    plural
  • opera
    plural
  1. a musical composition.

  2. one of the compositions of a composer, usually numbered according to the order of publication.

  3. a literary work or composition, as a book: op.

    Have you read her latest opus?


opus British  
/ ˈəʊpəs, ˈɔp- /

noun

  1. an artistic composition, esp a musical work

  2. (often capital) (usually followed by a number) a musical composition by a particular composer, generally catalogued in order of publication

    Beethoven's opus 61 is his violin concerto

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of opus

1695–1705; < Latin: work, labor, a work

Explanation

An opus is a created work, usually musical in nature. The composer's greatest opus was inspired by the blooming of the spring flowers. While an opus is a piece of work, usually musical, the best way to remember it is to know that the preferred plural of opus is opera which everyone associates with music. You can also say opuses for the plural if you want, but how is that going to help you remember anything? A common usage of opus is with the term magnum opus which refers to one’s greatest work, musical or otherwise.

Keep Reading on Vocabulary.com

Vocabulary lists containing opus

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

My friend Sharon and I had just settled at our table and ordered our dinner and drinks when she steered our conversation toward Christopher Nolan’s latest opus.

From Salon Aug. 2, 2026

The Surge was pleased to publish a quick li’l 4,000-plus-word opus this week on Sen. Susan Collins and what makes her such a tough opponent.

From Slate Jun. 19, 2026

That’s the backdrop for Wall Street giant Citi’s 165-page opus on the global commodities outlook, written by strategists led by Maximilian Layton.

From MarketWatch Mar. 24, 2026

While Mr. Livingston is unstinting in his admiration for Mr. Sumption’s opus, and often cites it in his endnotes, he offers many valuable insights of his own, delivered in a lively, conversational style.

From The Wall Street Journal Feb. 11, 2026

Copernicus published his magnum opus on his deathbed—in 1543, just before the church started clamping down on new ideas.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

Museums, art galleries, film studios, libraries, and opera houses have also been damaged.

From BBC Aug. 31, 2026

We see Holbein’s image of Anne multiplying through an 18th-century oil portrait; Jacob Houbraken’s 1738 engraving and a constellation of miniature copies; and Queen Victoria’s sketch of Giulia Grisi singing in Donizetti’s opera “Anna Bolena.”

From The Wall Street Journal Aug. 22, 2026

Beginning her career as a child actor, Hayden Panettiere was just four years old when she was cast on the popular US soap opera One Life to Live.

From BBC Aug. 17, 2026

Ms. Waleson writes on opera for the Journal.

From The Wall Street Journal Aug. 17, 2026

She wants to sing some opera song from her last recital for her audition piece.

From "P.S. I Miss You" by Jen Petro-Roy

Two summers ago, the most overt commonality shared by Greta Gerwig’s and Christopher Nolan’s opuses was a release date pitting the predicted box office whales against each other.

From Salon Jul. 11, 2025

Still, there would be no “Sonata Pathétique” without Prince Lichnowsky’s purse strings, no Sistine Chapel without Pope Julius II, no bold young talents like Corbet making their worthy magnum opuses without someone footing the bill.

From Los Angeles Times Dec. 18, 2024

They riffed on revealing their career-defining opuses at this, the perfect moment, only to unleash … nothing.

From Washington Post Mar. 8, 2023

He’s also known for taking excessively dull subjects, like concrete and water, and writing fascinatingly about them in magnum opuses for The New Yorker.

From Golf Digest Apr. 1, 2020

His opuses are in demand And are the final test By which all others fall or stand In this the mighty west!

From Hoosier Lyrics by Eugene Field

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