magnum opus
US /ˌmæɡ.nəm ˈoʊ.pəs/
UK /ˌmæɡ.nəm ˈoʊ.pəs/
1.
obra-prima, magnum opus
a large and important work of art, music, or literature, especially one regarded as the most important work of an artist or writer.
:
•
His latest novel is considered his magnum opus.
Seu último romance é considerado sua obra-prima.
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The symphony is widely regarded as the composer's magnum opus.
A sinfonia é amplamente considerada a obra-prima do compositor.