Asian Development Bank 
Apple Desktop Bus 
African Development Bank 
Agricultural Development Bank 
Aerodynamic Data Book 
Automatische Differantial Bremse 
Accidental Death Benefit 
Administrative Data Base 
Aircraft Discrepancy Book 
Applications Data Base 
Applications Development Branch 
A DeBugger 
absolute 
Accelerated Death Benefits 
Activated Diffusion Bonding 
Adaptive Dynamic Backbone 
Adelaide Bank 
Adhesive Bonding 
advanced debugger 
ADVANCED DESIGN BUS 
Advanced Development Branch 
Aft Differential Bearing 
Algol 
American Development Bank 
American-Dutch-British 
Analog Data Block 
antideoxyribonuclease B 
anti-DNase B 
Antonov Airlines 
Apple's Desktop Bus