opus Meaning, Definition & Usage

  1. noun a musical work that has been created
    piece of music; musical composition; piece; composition.
    • the composition is written in four movements

WordNet

O"pus noun
Etymology
L. See Opera.
Wordforms
plural Opera
Definitions
  1. A work; specif. (Mus.), a musical composition. ✍ 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.)

Webster 1913