opera (n.)
- amphitheater
- arrangement
- artifact
- auditorium
- ballet
- bomb
- brainchild
- cabaret
- charade
- child
- club
- coinage
- composition
- concoction
- copy
- creation
- creature
- dialogue
- distillation
- draft
- drama
- duologue
- edition
- effect
- essence
- extract
- extravaganza
- failure
- flop
- fruit
- giveaway
- hall
- handiwork
- happening
- hit
- house
- hymnal
- hymnbook
- invention
- issue
- libretto
- manufacture
- masque
- masterpiece
- melodrama
- minstrel
- mintage
- miracle
- monologue
- morality
- music
- musical
- mystery
- nightclub
- notation
- offspring
- operetta
- opus
- origination
- outcome
- outgrowth
- pageant
- pantomime
- part
- pastoral
- piece
- play
- playhouse
- playlet
- product
- production
- result
- review
- revue
- score
- serial
- show
- showboat
- sitcom
- sketch
- skit
- soap
- songbook
- songster
- spectacle
- success
- tablature
- tableau
- text
- theater
- transcript
- transcription
- vaudeville
- vehicle
- version
- work