opus

noun

/ˈəʊpəs/

(plural opera

/ˈɒpərə/

/ˈɑːpərə/

)

[usually singular]

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(abbreviation op.)
a piece of music written by a famous composer and usually followed by a number that shows when it was written（按作曲家的创作时间排列的）编号乐曲
- Beethoven’s Opus 18贝多芬第十八号作品
Topics Musicc2
(formal) an important piece of literature, etc., especially one that is on a large scale主要（文学等）作品；（尤指）大作，巨著 synonym work see also magnum opus

Word Originearly 18th cent.: from Latin, literally ‘work’.