What does the word opus mean?

Usage examples for opus

  1. Your book- 'The American Octopus, ' is selling well? – The Lion and the Mouse A Story of an American Life by Charles Klein
  2. History to a Roman was opus oratorium, a work of literary art. – Tacitus: The Histories, Volumes I and II by Caius Cornelius Tacitus
  3. 73. The floor of the church is of the ancient mosaic known as Opus Alexandrinum. – Walks in Rome by Augustus J.C. Hare