ABCD is a list of the first four letters in the

English alphabet The alphabet for Modern English is a Latin-script alphabet consisting of 26 letters, each having an upper- and lower-case form. The word ''alphabet'' is a compound of the first two letters of the Greek alphabet, '' alpha'' and '' beta''. ...

. It may also refer to:

Film

* ''ABCD'' (film), a 2005 Tamil romance film * ''

ABCD 2 ''Disney's ABCD 2'', also known as ''Any Body Can Dance 2'', is a 2015 Indian Hindi-language dance film directed and choreographed by Remo D'Souza and produced by Siddharth Roy Kapur under Walt Disney Pictures. A stand-alone sequel to the 2013 ...

'', a 2015 Indian dance film * '' ABCD: American-Born Confused Desi (2013 film)'', a 2013 Malayalam comedy film * '' ABCD: American Born Confused Desi (2019 film)'', a 2019 Telugu drama film * '' ABCD: Any Body Can Dance'', a 2013 Bollywood film

Medicine

ABC (medicine) ABC and its variations are initialism mnemonics for essential steps used by both medical professionals and lay persons (such as first aiders) when dealing with a patient. In its original form it stands for ''Airway'', ''Breathing,'' and '' Circul ...

, also known as ABCD, a mnemonic for steps in resuscitation *

ABCD rating ABCD rating, also called the Jewett staging system or the Whitmore-Jewett staging system, is a staging system for prostate cancer that uses the letters ''A'', ''B'', ''C'', and ''D''. * “A” and “B” refer to cancer that is confined to the ...

, a staging system for prostate cancer *

ABCD syndrome Albinism-black lock-cell migration disorder (ABCD syndrome) is the initialism for the following terms and concepts that describe a condition affecting a person's physical appearance and physiology: (1) A – albinism, (2) B – black lock of ha ...

, a genetic disorder *

ABCD1 ABCD1 is a protein that transfers fatty acids into peroxisomes. Function The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and in ...

, a protein * ABCD² score, a score for determining the risk of stroke after a transient ischemic attack

Science

ABCD Schema The Access to Biological Collections Data (ABCD) schema is a highly structured data exchange and access model for taxon occurrence data (specimens, observations, etc. of living organisms), i.e. primary biodiversity data. In 2006, an 'Extension For ...

, a highly structured data exchange and access model for taxon occurrence data (specimens, observations, etc. of living organisms) *

ABCD matrix analysis Ray transfer matrix analysis (also known as ABCD matrix analysis) is a mathematical form for performing ray tracing calculations in sufficiently simple problems which can be solved considering only paraxial rays. Each optical element (surface, in ...

, a type of ray tracing technique used in the design of some optical systems * ''ABCD''-parameters, a type of properties describing the electrical behavior of linear electrical networks

Other uses

* ABCd, American streaming service * Action for Boston Community Development, a Boston, Massachusetts-based non-profit social services agency *

Asset-based community development Asset-based community development (ABCD) is a methodology for the sustainable development of communities based on their strengths and potentials. It involves assessing the resources, skills, and experience available in a community; organizing the co ...

, a methodology that seeks to uncover and highlight the strengths within communities *

Association of Better Computer Dealers The Computing Technology Industry Association (CompTIA) is an American non-profit trade association that issues professional certifications for the information technology (IT) industry. It is considered one of the IT industry's top trade associa ...

, former name of CompTIA, an American non-profit trade association * ABCD Region, an industrial district outside of São Paulo, Brazil *

American-Born Confused Desi "American-Born Confused Desi" ("ABCD") is an informal term used to refer to South Asian Americans particularly of Indian, Pakistani or Bangladeshi origin, born or raised in the United States, in contrast to those who were born overseas and later s ...

, informal term for South Asian Americans born or raised in the United States * ABCD: add, browse, change, delete, another representation of

create, read, update and delete In computer programming, create, read, update, and delete (CRUD) are the four basic operations of persistent storage. CRUD is also sometimes used to describe user interface conventions that facilitate viewing, searching, and changing information ...

ABCD line The was a Japanese name for a series of embargoes against Japan by foreign nations, including the United States of America, Britain, China, and the Dutch. It was also known as the . In 1940, in an effort to discourage Japanese militarism, these ...

, a Japanese term for embargoes placed against Japan by the Americans, British, Chinese and Dutch, as well as other countries *

ABCD ships ABCD is a list of the first four letters in the English alphabet. It may also refer to: Film * ''ABCD'' (film), a 2005 Tamil romance film * ''ABCD 2'', a 2015 Indian dance film * '' ABCD: American-Born Confused Desi (2013 film)'', a 2013 Mal ...

, the first four steel ships built during the "New Navy" period of U.S. Naval history - USS ''Atlanta'', ''Boston'', ''Chicago'' and ''Dolphin'' * Four major agriculture commodity companies ** Archer-Daniels-Midland ** Bunge **

Cargill Cargill, Incorporated, is a privately held American global food corporation based in Minnetonka, Minnesota, and incorporated in Wilmington, Delaware. Founded in 1865, it is the largest privately held corporation in the United States in ter ...

** Louis Dreyfus {{DEFAULTSORT:Abcd