superoctave /sooˈ, sūˈpər-ok-tiv/

1. An organ coupler giving an octave higher
2. An organ stop two octaves above the basic pitch

• drivetrain
• driveway
• driveways
• driving
• driving-band
• driving-bands
• driving-box
• driving-boxes
• driving force
• driving forces
• driving-gear
• driving-gears
• driving licence
• driving licences
• driving-mirror
• driving-mirrors
• driving range
• driving ranges
• drivings
• driving seat
• driving seats
• driving shaft
• driving shafts
• driving test
• driving tests