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du·al·ly | \ ˈdü-ə(l)-ˌlē 
also ˈdyü- \
also ˈdyü- \Definition of dually
: in a double capacity : in two ways
Since the library functions dually as a working room for a writer and a space for entertaining, the architect was careful to make a place for everything.— Carol Vogel … rising prescription drug costs for those dually eligible for Medicare and Medicaid … — Inside Health Reform
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Time Traveler for dually
The first known use of dually was in 1650
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