"dual" - key terms from Wikipedia

dual
dual address cycle
dual agency
dual alliance
dual analog
dual analog controller
dual and third country nationals
dual attention
dual band
dual carriageway
dual channel
dual citizenship
dual clutch transmission
dual combat sighting system
dual core
dual degree
dual disk drive
dual exhaust
dual exhausts
dual federalism
dual form
dual fuel
dual gauge
dual language
dual layer
dual link
dual link interface
dual meet
dual mode
dual monarchy
dual mono
dual national
dual nationality
dual number
dual numbers
dual polyhedron
dual purpose
dual rectifier
dual role
dual shock
dual sim
dual space
dual stack
dual stripes and red accent
dual suspension
dual usb
items by dual and third
points in a dual meet
rotary valve single dual purpose
usml items by dual