CA
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CA or ca may refer to:
Businesses and organizations
Companies
- Air China (IATA airline code CA)
- CA Technologies, a U.S. software company
- Cayman Airways, a Cayman Islands airline
- Channel America, a defunct U.S. television network
- Classic Army, a Hong Kong-based manufacturer of airsoft replicas
- Continental Airlines, a U.S. airline
- Creative Assembly, a PC game developer
- Crédit Agricole, a major French bank
Government and political
- Bureau of Consular Affairs, a division of the U.S. Department of State
- 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
- Combined authority, a local government entity in the United Kingdom
- Commission on Appointments, a body of the Congress of the Philippines
- Conservatives Abroad, overseas wing of the British Conservative Party
- Countryside Alliance, a British political organization
- Court of Appeals
- Customs Administration, an agency of Taiwan
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
Other organizations
- Caterers' Association, former UK trade association
- Cocaine Anonymous, a twelve-step program
In linguistics
- 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)
- ca, the subdomain for Catalan Wikipedia
- Contrastive analysis, the systematic study of a pair of languages
Mathematics, science, and technology
Biology and medicine
- CA (journal), a medical journal
- Ca (moth), a moth genus
- Ca., abbreviation for Candidatus, for taxonomical names that have not been completely described
- Cancer
- Carbonic anhydrase, a family of enzymes
- Carcinoma, a type of cancer
- Cardiac arrest
Chemistry
- Calcium (Ca)
- Catecholamine, an organic compound
- Cellulose acetate, a type of plastic
- Chemical Abstracts, a publication of Chemical Abstracts Service
- Cyanoacrylate, a chemical compound
Mathematics and computing
- Cellular automaton, a discrete mathematical model
- Certificate authority, an entity issuing digital certificates for secure communications
- Correspondence analysis, a multivariate statistical technique
- Cultural algorithm, a type of evolutionary computation in computer science
Other uses in science and technology
- Centiampere (cA), an SI unit of electric current
- Certificate Authority (CA), an entity that issues digital certificates
- CA-class submarine, a World War II Italian midget submarine
- Nissan CA engine, used in smaller Nissan vehicles
- Chromatic aberration, a distortion in optical lenses
- Conditional access, in broadcast engineering
- Conservation agriculture, a food system
- Conversation Analysis, the study of talk in interaction
Places
- Cả River, in Laos and Vietnam
- Province of Cádiz, Spain
- California, US state by postal abbreviation
- Canada, by ISO 3166-1 alpha-2 code
- .ca, Internet country code for Canada
- City of Carlisle, United Kingdom, by postcode
- Catamarca Province, Argentina
- Central America
- Tokyo Bay Aqua-Line, a bridge-tunnel across Tokyo Bay area in Japan, numbered as CA
Other uses
- Chartered Accountant
- Circa, meaning approximately
- Civil affairs, a term used by both the United Nations and by military institutions
- Communication arts (disambiguation)
- Confidentiality agreement
- Current account (disambiguation), in economics
- centiare, = 1 square metre
- Ca Mè Mallorquí, a dog breed native to Spain
- Captain America
- CA-, a road designation for highways part of the Central American highway network
- Cabin Attendant
See also
- Class A (disambiguation)
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