plural opera /ˈoʊpərə/ also opuses /ˈoʊpəsəz/ plural opera /ˈoʊpərə/ also opuses /ˈoʊpəsəz/ Learner's definition of OPUS
[count]
1
: a piece of music written by a major composer(作曲大师的)编号音乐作品 —
usually singular通常用单数 —
usually followed by a number (called an opus number) that indicates when a piece of music was written in the list of works written by the same composer通常接数字(称为乐曲编号),表示同一作曲家所谱写作品完成的先后顺序 2
formal : an important work done by a writer, painter, etc.(作家、画家等的)重要作品,大作 —
usually singular通常用单数 — see also magnum opus