Ab

AB may mean:

One of the human blood types in the ABO blood group system
AB (food), a takeaway meal popular in Adelaide
Aberdeen, a British post code
"Able-Bodied", as used by some members of the disabled community
Able Seaman
Aharonov-Bohm effect arising in a certain experiment of quantum mechanics.
Air Base, used by the United States Air Force for overseas bases
Air Berlin, IATA code
Airman Basic, the lowest rank in the United States Air Force.
Aitareya Brahmana
Akademisk Boldklub, a Danish professional football club
Alberta, a Canadian province (postal code)
Abscesses caused by injections, especially heroin injection
Aktiebolag, Swedish for "corporation", similar to AG, Ltd or Inc
Artium Baccalaureus, Latin for Bachelor of Arts
Aryan Brotherhood, an American gang
AB-Aktion, short for Außerordentliche Befriedungsaktion, the German extermination of Polish intelligentsia in World War II

Ab may mean:

Ab is a Dutch name.
Ab (Egyptian heart-soul concept), the Egyptian concept of the heart-soul
Abdominal 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
Category of abelian groups
AB. Arathi Basin from World of Warcraft MMORPG.

ab may mean:

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