Definition of magnum opus in English:

magnum opus

Syllabification: mag·num o·pus
Pronunciation: /ˈmagnəm ˈōpəs
 
/

noun (plural magnum opuses or magna opera /ˈmagnə ˈōpərə, ˈäpərə/)

  • A large and important work of art, music, or literature, especially one regarded as the most important work of an artist or writer.
    More example sentences
    • The comic version may well turn out to be the writer Alan Moore's magnum opus.
    • A central theme of his poetry, as well as of his magnum opus, the novel Doctor Zhivago, is man's destiny in revolutionary times.
    • On the eve of the First World War, having completed his magnum opus Principia Mathematica on which he had toiled for 10 years, Russell was at a loose end.

Origin

late 18th century: from Latin, 'great work'.

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Word of the day skosh
Pronunciation: skōSH
noun
a small amount; a little