: a great work; especially : the greatest achievement of an artist or writer
Examples of MAGNUM OPUS
- His last novel was his magnum opus.
- <this symphony is usually considered Beethoven's magnum opus>
Origin of MAGNUM OPUS
First Known Use: 1791
Learn More About MAGNUM OPUS
Seen & Heard
What made you want to look up magnum opus? Please tell us where you read or heard it (including the quote, if possible).