Magnum opus (sometimes Opus magnum, plural magna opera), from the Latin meaning great work,The American Heritage® Dictionary of the English Language, Fourth Edition, Retrieved December 10, 2006, from http://dictionary.reference.com Dictionary.com refers to the best, most popular, or most renowned achievement of an author, artist, or composer, and most commonly one who has contributed a very large amount of material. For instance, Don Quixote is the magnum opus of Miguel de Cervantes; In Search of Lost Time (also known as Remembrance of Things Past) is the magnum opus of Marcel Proust;Dictionary.com Unabridged (v 1.0.1), Retrieved December 10, 2006, from http://dictionary.reference.com Dictionary.com Leonardo Da Vinci's magnum opus is the Mona Lisa; Jonathon Swift's magnum opus is Gulliver's Travels. In terms of music, The Beatles' magnum opus is considered to be their album Sgt.
