as in masterpiece
something (as a work of art) that is a great achievement and often its creator's greatest achievement this symphony is usually considered Beethoven's magnum opus

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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 magnum opus Billing it as his magnum opus, Moretti invites a small group of journalists and influencers — including ambitious young magazine writer Ariel Ecton (played by Ayo Edebiri) — to his remote compound in Utah for a listening party. Jessica Wang, EW.com, 12 Mar. 2025 In his magnum opus on World Order, Kissinger identified power and legitimacy as the two key elements of a sustainable order. Saleem H. Ali, Forbes, 1 Mar. 2025 Compared with Einstein’s magnum opus, teleparallel gravity has a much richer, and more complicated, mathematical structure. Paul M. Sutter, Scientific American, 26 Feb. 2025 The film won Best Picture at the 1978 Oscars, and is widely considered one of the most influential romance films of the 20th century, as well as Allen's magnum opus. Wesley Stenzel, EW.com, 8 Feb. 2025 See All Example Sentences for magnum opus
Recent Examples of Synonyms for magnum opus
Noun
  • The masterpiece was designed in 1912 by Eduardo Ferrés i Puig and was executed by master glaziers Maumejean.
    Angelina Villa-Clarke, Forbes.com, 19 Apr. 2025
  • So begins the novelist Mario Vargas Llosa’s 1969 masterpiece, Conversation in the Cathedral.
    Ilan Stavans, The Atlantic, 15 Apr. 2025

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“Magnum opus.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/magnum%20opus. Accessed 3 May. 2025.

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