What does DÜ stand for?

What does DÜ mean?

DU	Drafting Unit Academic & Science » Architecture
DU	Down Under Regional » Australian
DU	Depleted Uranium Academic & Science » Chemistry
DU	Discrete Uniform Miscellaneous » Clothes
DU	Dubai Regional » Countries
DU	Dimwitted Underlings Miscellaneous » Funnies
DU	Dummies United Miscellaneous » Funnies
DU	Dragon Universe Miscellaneous » Gaming
DU	Data Unit Computing » General
DU	Disk Usage Computing » General
DU	Disk Used Computing » General
DU	Dry and Unstable Academic & Science » Geology
DU	Disk Unit Computing » Hardware
DU	Dwelling Unit Community » Housing
DU	Despatch Unit Business » International Business
DU	Distribution Unit Medical » Laboratory
dU	The Derivative of U Academic & Science » Mathematics
DU	Depleted Uranium Governmental » Military
DU	Death Unit Governmental » Military
DU	Dwelling Unit Business » Mortgage
DU	Display Unit Governmental » NASA
DU	Ducks Unlimited Community » Non-Profit Organizations
DU	Dobson Unit Academic & Science » Ocean Science
DU	Durability Academic & Science » Physics
DU	Diagnosis Undetermined Medical » Physiology