(music) A theatrical work, combining drama, music, song and sometimes dance. / (music) The score for such a work. / A building designed for the performance of such works; an opera house.

plural of opus; a collection of work.

plural of opera

(countable) A radio or television serial, typically broadcast in the afternoon or evening, about the lives of melodramatic characters, which are often filled with strong emotions, highly dramatic situations and suspense.

A pair of small low-powered binoculars for use at a theatrical performance.

plural of opera glass

One or more pairs of small low-powered binoculars for use by members of the audience at a theatrical performance.

A theatre, or similar building, primarily used for staging opera.

plural of magnum opus

(initially derogatory) A subgenre of speculative fiction or science fiction that emphasizes space travel, romantic adventure, and larger-than-life characters often set against vast exotic settings.