(~es, or opera)
1.
An ~ is a piece of classical music by a particular composer. Opus is usually followed by a number which indicates at what point the piece was written. The abbreviation op. is also used.
...Beethoven’s Piano Sonata in E minor, Opus 90.
N-COUNT: usu N num
2.
You can refer to an artistic work such as a piece of music or writing or a painting as an ~.
...the new ~ from Peter Gabriel.
= work
N-COUNT
see also magnum ~