There is a total of 6423 clues beginning with op
- Opera participants
- Opera parts
- Opera patron Kahn
- Opera performance
- Opera performed today, yet neglected
- Opera performer
- Opera performers
- Opera persona
- Opera phantom's instrument
- Opera piece
- Opera piece for one
- Opera piece for one voice
- Opera piece such as "Dido's Lament"
- Opera piece
- Opera preceders
- Opera premiere of 1835
- Opera premiere: Cairo, 1871
- Opera premiere: Milan, 1831
- Opera premiere: Paris, 1881
- Opera premiere: Rome, 1900
- Opera premiere: St Petersburg, 1836
- Opera premiere: Venice, 1857
- Opera presenter, with "the"
- Opera prince
- Opera princess
- Opera princess who loves Radames
- Opera principal
- Opera prog
- Opera promoter
- Opera prop
- Opera prop, perhaps
- Opera quickie
- Opera record
- Opera recording
- Opera recordings
- Opera redone by Disney
- Opera redone by Elton John
- Opera redone by Elton John and Tim Rice
- Opera remembered for "Home, Sweet Home"
- Opera rendition
- Opera rival
- Opera role
- Opera role originated by Anne Brown
- Opera role
- Opera roles
- Opera scene
- Opera script
- Opera scripts: Ital
- Opera section
- Opera section
- Opera seen frequently in crosswords
- Opera segment
- Opera segment
- Opera selection
- Opera selections
- Opera seria melody
- Opera set along the Nile
- Opera set around Seville
- Opera set by the Nile
- Opera set frequently in crosswords
- Opera set in 1800 Rome
- Opera set in ancient Egypt
- Opera set in ancient Thebes
- Opera set in Cyprus
- Opera set in Egypt
- Opera set in Egypt and written by an Italian
- Opera set in Egypt
- Opera set in Eqypt
- Opera set in Mantua
- Opera set in Memphis
- Opera set in Memphis
- Opera set in Rome
- Opera set in Rome in 1800
- Opera set in Seville
- Opera set in the age of pharaohs
- Opera set in the time of the Pharaohs
- Opera set in Thebes
- Opera set near the Nile
- Opera set on Cyprus
- Opera set on the banks of the Nile
- Opera set on the Nile
- Opera set partly on the banks of the Nile
- Opera setting for "Aida"
- Opera setting, for short
- Opera showpiece
- Opera showstopper
- Opera singer
- Opera singer Anne __ von Otter
- Opera singer Bostridge
- Opera singer Callas
- Opera singer Caruso
- Opera singer Cesare
- Opera singer Conner
- Opera singer created by Arthur Conan Doyle
- Opera singer Flagello
- Opera singer Fleming
- Opera singer Frances
- Opera singer Gluck
- Opera singer in an opera
- Opera singer known as "La Divina"