The definition of an opus is a large scale creative work, especially a musical composition or set of musical compositions, numbered by date.noun
A musician's series of works organized by date of publication is an example of an opus.YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.
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noun pl. o·pe·ra or o·pus·es
Origin: Latin; see op- in Indo-European roots.