There is a total of 85689 clues beginning with o
- Opera's Caldwell
- Opera's cigarette girl
- Opera's cigarette girl
- Opera's Dame Nellie
- Opera's Don Pedro and Don Pasquale, eg
- Opera's Emma
- Opera's Escamillo, for one
- Opera's Ethiopian princess
- Opera's famed La ___
- Opera's Frederica von Stade, eg
- Opera's Frederica Von ___
- Opera's Gluck
- Opera's Hans ___
- Opera's home
- Opera's La ___
- Opera's Lehmann
- Opera's Lily
- Opera's Maria
- Opera's Mario Lanza, for one
- Opera's Martina
- Opera's Melba
- Opera's Merriman
- Opera's Moser
- Opera's Nellie
- Opera's Obraztsova
- Opera's opening
- Opera's prince
- Opera's Puccini
- Opera's Renata
- Opera's Scotto
- Opera's Siepi
- Opera's Simon
- Opera's Simon ___
- Opera's slave princess
- Opera's solo
- Opera's start
- Opera's Stevens
- Opera's Stratas
- Opera's Te Kanawa
- Opera's Tebaldi
- Opera's Trojan princess
- Opera's Varnay et al
- Opera's ___ Kanawa
- Opera's ___ Te Kanawa
- Opera's ___ Te Kanawa, who appeared on "Downton Abbey"
- Opera's _____ Te Kanawa
- Opera, as a form
- Opera, ballet and so on
- Opera, to its detractors?
- Opera, with "La"
- Opera-box headgear
- Opera-box sight
- Opera-box wear
- Opera-box wear
- Opera-goer's must
- Opera-goer's purchase
- Opera-going attire
- Opera-going lady?
- Opera-house accommodation
- Opera-house box
- Opera-house boxes
- Opera-house cheer
- Opera-house cheers
- Opera-house delivery
- Opera-house feature
- Opera-house highlight
- Opera-house layer
- Opera-house level
- Opera-house section
- Opera-singing Kiwi
- Opéra-___
- Opera
- Operagoer's accessory
- Operagoer's box
- Operagoer's coat, perhaps
- Operagoer's glasses
- Operagoer's reference
- Operagoer's wear
- Operagoer's wear, maybe
- Operaman portrayer on "Weekend Update"
- Operandi or vivendi
- Operas by Boito and Mascagni
- Operate
- Operate (against)
- Operate a 1-Down
- Operate a 767, say
- Operate a backhoe
- Operate a blog
- Operate a car
- Operate a Cessna, say
- Operate a combine
- Operate a glider
- Operate a harvester
- Operate a jet
- Operate a jet
- Operate a loom
- Operate a machine
- Operate a Piper Cub
- Operate a plane
- Operate a plane