opus /ˈopəs/
 作品


 O·pus n.; pl. Opera   A work; specif. Mus., a musical composition.
 Note: ☞ Each composition, or set of pieces, as the composer may choose, is called an opus, and they are numbered in the order of their issue. (Often abbrev. to op.)
 Opus incertum.  Arch. See under Incertum.

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 opus
      n : a musical work that has been created; "the composition is
          written in four movements" [syn: musical composition, composition,
           piece, piece of music]