Definition of operas:
(n) :
(music) A theatrical work, combining drama, music, song and sometimes dance.
(n) :
(music) The genre of such works, the art of composing operas.
(n) :
A building designed for the performance of such works; an opera house.
(n) :
A company dedicated to performing such works.
(n) :
(music) The score for such a work.
(n) :
(by extension) Any showy, melodramatic or unrealistic production resembling an opera.