title: ABCD
text: ABCD is a list of the first four letters in the English alphabet.  It may also refer to:
  
  Film 
   ABCD (film), a 2005 Indian Tamil-language romance film
   ABCD: American Born Confused Desi (disambiguation), various Indian films so titled
   ABCD: Any Body Can Dance, a 2013 Indian Hindi-language dance-drama film by Remo D'Souza
   ABCD 2, its 2015 sequel film by D'Souza
  
  Medicine
  
   ABC (medicine), also known as ABCD, a mnemonic for steps in resuscitation
   ABCD rating, a staging system for prostate cancer
   ABCD syndrome, a genetic disorder
   ABCD1, a protein
   ABCD2 score, a score for determining the risk of stroke after a transient ischemic attack
  
  Science
   ABCD Schema, a highly structured data exchange and access model for taxon occurrence data (specimens, observations, etc. of living organisms)
   ABCD matrix analysis, 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, a methodology that seeks to uncover and highlight the strengths within communities
   Association of Better Computer Dealers, former name of CompTIA, an American non-profit trade association
   ABCD Region, an industrial district outside of São Paulo, Brazil
   American-Born Confused Desi, 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
   ABCD line, a Japanese term for embargoes placed against Japan by the Americans, British, Chinese and Dutch, as well as other countries
   ABCD ships, 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
   Louis Dreyfus