1. A dramatic work set to music, featuring singers and often an orchestra, with elaborate staging and costumes
She attended the opera performance at the Metropolitan Opera House.
Ela assistiu à apresentação de ópera na Metropolitan Opera House.
2. The genre or art form of such musical dramas
Opera has been a major art form since the 17th century.
A ópera tem sido uma forma de arte importante desde o século XVII.
3. A building or theater where operas are performed
The new opera is a stunning architectural landmark.
A nova ópera é um marco arquitetônico impressionante.