AB

=Ab=

Ab may mean:

* "Ab" is a Dutch name.
*A^B class, a locomotive class operated by the New Zealand Railways Department
*Ab (Egyptian heart-soul concept), the Egyptian concept of the heart-soul
* Abdominal muscles (abbreviated Ab), which are the "rectus abdominis" or the stomach muscles
*Aktiebolag, Swedish for "corporation," similar to AG, Ltd or Inc, as used in Finland
*Antibody, a medical abbreviation
*Av (month), a month in the Hebrew calendar

ab

ab may mean:
*Abkhazian language (ISO 639 language code)
*ab The ApacheBench command line tool for Apache HTTP Server
*Canada's subdomain for Alberta
*Semitic for "father", see Ab (father)
*Indo-European for "water", see ap (water).

AB or A-B

AB or A-B may mean:

Locations, places, and types of places

*Aberdeen, after which the UK postal area AB is named.
*Acton-Boxborough Regional High School, commonly abbreviated as AB
*Albania (WMO country code)
*Alberta (Canadian Province/Territory Code)
* Air Base, used by the United States Air Force for overseas bases
*"Ancienne Belgique", Belgian concert hall located in Brussels
*Anime Boston, an annual three-day anime fan convention held in the spring in Boston, Massachusetts.

Companies, universities, and organizations, groups (and related)

*Aktiebolag, Swedish for "corporation", similar to AG, Ltd or Inc
*Air Berlin, IATA code
*AB Airlines, a defunct British airline
*Activision Blizzard, a video game developer and publisher.
*Anheuser-Busch, the world's third largest brewing company
*Allen-Bradley, manufacturer of industrial control and automation products
*AllianceBernstein, a US based asset management firm
*Alderson-Broaddus College, a liberal-arts college in West Virginia
*Alfa-Vita Vassilopoulos, a Greek supermarket chain
*Applied Biosystems, a US-based biotechnology firm
*"Artium Baccalaureus", Latin for Bachelor of Arts, often abbreviated A.B.
*Aryan Brotherhood, an American gang
*Afrikaner Broederbond, the South African secret society from 1918-1994
*Bachelor of Arts, written in the 19th century as A.B.

Medicine, science, technology, and math

*One of the human blood types in the ABO blood group system
*AB Class amplifier
*Aharonov-Bohm effect arising in a certain experiment of quantum mechanics.
*Abscesses caused by injections, especially heroin injection
*Antibody

ports

*At Bat, baseball statistic
*Andris Biedriņš, basketball player
*Akademisk Boldklub, a Danish professional football club
*AB is the nickname of legendary Australian cricketer Allan Border
*Atlanta Braves, an MLB Baseball team
*AB de Villiers, South African middle order batsman

Terms for people

*"Able-Bodied", as used by some members of the disabled community
*Able Seaman (occupation), a civilian occupation
*Able Seaman (rank), a naval rank
*Adult Baby, one who engages in infantilism.
*Airman Basic, the lowest rank in the United States Air Force.
*"Artium Baccalaureus", Latin for Bachelor of Arts.
*"Good Eats" host Alton Brown's nickname

Culture, food and history

*Aitareya Brahmana
*AB-Aktion, short for Außerordentliche Befriedungsaktion, the German extermination of Polish intelligentsia in World War II
*Address book

Miscellanea

* Assembly Bill