Community Dial Office
Command Duty Officer
Collateralized Debt Obligation
Collaboration Data Objects
Commando
Commercial Development Office
Central Dial Office
Chief Dental Officer
Civil Defense Organization
Common Dictionary Operator
Connect Data Overflow
controlled decomposition/oxidation
cadmium oxide
Call Diversion to Operator
Cease And Desist Order
Center Duty Officer
central dense overcast
Central Disbursing Officer
Central Division Office
Centre de Documentation en Ophtalomolo…
Change Data Order
Change Design Order
Chief Data Officer
Chief Demonstration Officer
Chief Development Officer
Chief Diversity Officer
chronic duodenal obstruction
Civilian Detention Officer
Collaboration Data Object
Collateral Debt Obligation