CA

CA or ca may refer to:

Places

Americas

• Canada, a country, by ISO 3166-1 alpha-2 code
• California, a U.S. state, by postal abbreviation
• Central America
• Catamarca Province, Argentina

Europe

• Province of Cádiz, Spain
• CA postcode area, United Kingdom
• Čadca District, Slovakia, former vehicle registration plate code

Asia

• Cả River, in Laos and Vietnam

Transportation

Airlines

• Air China (IATA airline code CA)
• Cayman Airways, a Cayman Islands airline
• Continental Airlines, a U.S. airline

Driving

• Tokyo Bay Aqua-Line, a bridge-tunnel across Tokyo Bay area in Japan, numbered as CA
• CA-, the Central American highway network's route number prefix
• Nissan CA engine (Clean Air)

Maritime

• CA, a US Navy hull classification symbol: Heavy cruiser (CA)
• CA-class submarine, a group of midget submarines built for the Italian Navy during World War II

Train

• , the route code for Tōkaidō Line (Shizuoka area), operated by Central Japan Railway Company (JR Central)

Mathematics, science, and technology

Life sciences

• Conservation agriculture, a food system
• Ca Mè Mallorquí, a dog breed native to Spain
• Ca (moth), a genus in the family Dalceridae
• Ca., abbreviation for Candidatus, for taxonomical names of prokaryotes (such as bacteria) that have not been completely described
• CA (journal), subtitled A Cancer Journal for Clinicians
• Cancer
• Carcinoma, a type of cancer
• Cardiac arrest
• Carbonic anhydrase, a family of enzymes

Chemistry

• Catecholamine, an organic compound
• Calcium, symbol Ca, a chemical element
• Cellulose acetate, a type of plastic
• Chemical Abstracts, a publication of Chemical Abstracts Service
• Cyanoacrylate, a family of adhesives

Mathematics, computing, and telecommunications

• Correspondence analysis, a multivariate statistical technique
• Cellular automaton, a discrete mathematical model
• Cultural algorithm, a type of evolutionary computation in computer science
• Certificate authority, an entity issuing digital certificates for secure communications
• Creative Assembly, a PC game developer
• Computer Associates International, Inc., later known as CA Technologies, Inc., a U.S. software company
• .ca, Internet country code for Canada
• ca.wikipedia.org, Catalan Wikipedia (Viquipèdia en català)
• Channel America, a defunct U.S. television network
• Conditional access, in broadcast engineering

Other uses in science and technology

• Centiampere (cA), an SI unit of electric current
• Chromatic aberration, a distortion in optical lenses

Language and linguistics

• Ca., an abbreviation for circa, meaning "approximately" in Latin
• Ça, French demonstrative pronoun
• Ca (Indic), a glyph in the Brahmic family of scripts
• Ca (Javanese), a letter in the Javanese script
• Catalan language (ISO 639 alpha-2 language code)
• Contrastive analysis, the systematic study of a pair of languages
• Conversation analysis, the study of talk in interaction

Schools

• Canadian Academy, an international school in Kobe, Japan
• Cary Academy, a private college-preparatory school in Cary, North Carolina, United States
• Claiborne Academy, a private school in Claiborne Parish, Louisiana, United States
• Clarksville Academy, a private college-preparatory school in Clarksville, Tennessee, United States
• Colorado Academy, a private college-preparatory school in Lakewood, Colorado, United States
• Concord Academy, a private college-preparatory school in Concord, Massachusetts, United States
• Connections Academy, an online school based in Baltimore, Maryland, United States
• Culver Academies, a boarding school and summer camp program in Culver, Indiana, United States

In sport

• California Angels, former name of a professional baseball team currently known as Los Angeles Angels
• Club Africain, a multi-sport club from Tunis, Tunisia
• Cricket Australia, the governing body for professional and amateur cricket in Australia
• Cruising Association, a UK membership organization for sailors
• Cycling Australia, the national governing body for bicycle racing in Australia

Government entities

• Bureau of Consular Affairs, a division of the U.S. Department of State
• Combined authority, a local government entity in the United Kingdom
• Commission on Appointments, a body of the Congress of the Philippines
• Court of Appeals
• Customs Administration, an agency of Taiwan

Political parties and interest groups

• Canadian Alliance, a former Canadian political party
• Centre Alliance, Australian political party formerly known as Nick Xenophon Team
• Citizens' Alliance, a political party in Trinidad and Tobago
• Conservatives Abroad, overseas wing of the British Conservative Party
• Countryside Alliance, a British political organization
• Caterers' Association, former UK trade association

Business

• Crédit Agricole, a major French bank
• Chartered accountant
• Confidentiality agreement or non-disclosure agreement, a contractual promise to restrict access to shared information
• Compañía Anónima, in Venezuela and Andorra, the equivalent of S.A. (corporation)
• Current account (disambiguation), a term with multiple meanings in macroeconomics and microeconomics / finance
• When appended to a stock-market ticker symbol (e.g. AAPL:CA): traded on Toronto Stock Exchange

Other uses

• 'CA': Tactical Naval Warfare in the Pacific 1941-43, a 1973 board wargame that simulates World War II naval combat
• centiare = 1 square metre
• Character assassination, a deliberate and sustained effort to damage the reputation or credibility of an individual
• Civil affairs, a term used by both the United Nations and by military institutions
• Coal & Allied, Australian mining company
• Cocaine Anonymous, a twelve-step program
• Creativity Alliance, an arm of Creativity (religion), a white supremacist organization

See also

• Communication arts (disambiguation)
• Circa (disambiguation)
• Class A (disambiguation)
• Ka (disambiguation)
• SA (disambiguation)
• Caca (disambiguation)
• ru:СА
• chr:ᏣᏱ
• ko:ꥢ