Look up AST, Ast, or ast in Wiktionary, the free dictionary.

AST, Ast, or ast may refer to:

• Attention schema theory, of consciousness or subjective awareness

• Abstract syntax tree, a finite, labeled, directed tree used in computer science
• Anamorphic stretch transform, a physics-inspired signal transform
• Andrew S. Tanenbaum (born 1944), American-Dutch computer scientist, sometimes identified as "ast"
• Asynchronous system trap, a mechanism used in several computer operating systems
• Application security testing, testing the operation and security of a software application
• Application support team, a team of application support analysts supporting IT services delivered to users within an organisation, enabling the required operational processes needed for the business to be successful.

• Aspartate transaminase, an enzyme associated with liver parenchymal cells
• Antibiotic sensitivity testing or antibiotic susceptibility testing, the measurement of the susceptibility of bacteria to antibiotics

• Alternative set theory
• Alternating series test

• Allied Security Trust, a patent holding company
• AST Research, a defunct personal computer manufacturer
• Association for Software Testing, US
• AST (publisher), a Russian book publishing company
• Arsenal Supporters' Trust, English football club supporters

• Abwehrstelle or Ast, the local intelligence center in each military district in Nazi Germany
• Alaska State Troopers, state police agency in Alaska, US
• Chadian Social Action (French: Action Sociale Tchadienne), a former political party in Chad
• Office of Commercial Space Transportation, of the US FAA

• Asturians, as used by ast.wikipedia.org

• ACT Scaling Test, for year 12 students, Australia
• Advanced Skills Teacher, a teaching role in England and Wales
• Air Service Training, a flight engineering training school
• American School in Taichung, an international school in Taichung, Taiwan
• American School of Tangier
• American School of Tegucigalpa
• American School of Tripoli
• Atlantic School of Theology, Halifax, Nova Scotia, Canada
• Avalanche Skills Training, Canada
• Conroe ISD Academy of Science and Technology, Texas, US

• Aldershot GO Station, Amtrak station code AST
• Astoria Regional Airport (FAA Identifier and IATA code AST), Clatsop County, Oregon, US
• Aston railway station (National Rail code), Birmingham, England

• Atlantic Standard Time, UTC−4
• Alaska Standard Time, UTC−9
• Arabia Standard Time, UTC+3
• Antigua and Barbuda Time, UTC−4

• Aviation Survival Technician, a US Coast Guard rating
• AST Research, Inc., as known as AST Computer, a personal computer manufacturer
• Asti, Italian province and city (was traditionally Ast in the Piemontese dialect)
• Assured shorthold tenancy, UK
• Asturian language (ISO 639 alpha-3: ast), Spain
• Astana Pro Team (UCI code AST), a professional road bicycle racing team
• Georg Anton Friedrich Ast, German philosopher and philologist (1778–1841)
• Pat Ast, American actress and model (1941-2001)
• AST SpaceMobile, American satellite manufacturer

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