ADB

ADB is a three-letter abbreviation with multiple meanings, as described below:

Absolute Debugger, a general purpose debugger for UNIX platforms
Active Dimension Battle, a battle system in computer gaming
Adnan Menderes Airport, the IATA airport code for the airport in Izmir, Turkey
African Development Bank, a non-profit financial institution whose aim is to help developing African countries
Allgemeine Deutsche Biographie, a biographical reference work in the German language
Apple Desktop Bus, a bit-serial computer bus for connecting low-speed devices to computers
Asian Development Bank, a non-profit financial institution whose aim is to help developing Asian countries
ADB is also a file format used by Microsoft Access