opus

 
Pronunciation: /ˈəʊpəs, ˈɒp-/

noun (plural opuses or opera /ˈɒp(ə)rə/)

  • 1 Music a separate composition or set of compositions. See also Op.
  • 2an artistic work, especially one on a large scale: he was writing an opus on Mexico

Origin:

early 18th century: from Latin, literally 'work'

Spelling help

The plural of opus can be spelled either opera (like the original Latin) or opuses.