What does ABU stand for?

ABO Resource Corp. - Vancouver Stock Exchange symbol

Abundant - Telegraphy (PCTE)

Abure - Language code (ETLW)

Abuyama - Japan - Seismograph station code, US Geological Survey

Adapter Building Units (ACAE)

Administrative Base Unit - British military (DMA)

Advanced Business Unit (SAUS)

Aerovias Bueno Ltd. - Colombia - ICAO designator (FAAC)

Alarm Buzzer (SAUS)

Allgemeine Bau-Union GmbH & Co. KG (EFIS)

Alliance Biblique Universelle

American Board of Urology (EA)

Amphibious Beach Unit - Military

Anglo-Belgian Union (SAUO)

Annunciator Buzzer (SAUS)

Answer-Back Unit (SAUS)

Antibody Unit

Application Business Unit

Asian Broadcasting Union (ODA)

Asia Pacific Broadcasting Union (EAIO)

Asia-Pacific Broadcasting Union (SAUO)

Assembly of Baptist Union (SAUO)

Asymptomatic Bacteriuria - Medicine (DMAA)

Australian Brushmakers' Union

Aviation Bird Unit (SAUS)

Aviation Boatswain's Mate (Utility) - U.S. Navy enlisted rating (AUER)

Quintus Inc., Camp Verde, AZ - Manufacturer code for watercraft hull identification number (USCG)

Aminobutyric Acid - Also, ABA - Biochemistry

Aburra (VRA)