Information & Library Science

  • noun a work of music or art, often abbreviated and used with an opus number to indicate the chronology of the work within a composer’s total work
  • abbreviationop

Cars & Driving

  • acronym foroscillating pick-up ignition system
    (written as OPUS)
  • noun an ignition system where the contact breaker and cam are replaced by a timing rotor, a pick-up module, and an amplifier module.