Cat most commonly refers to the domestic cat, Felis catus, or Felis silvestris catus
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Cat may also refer to:
Animals
- Any member of the Felidae, the biological family of the cats, including tigers, pumas, and wildcats
Science and Technology
- CAT(k) space, a specific type of metric space
- Cat, the category of small categories in category theory
- cat (Unix), the concatenate program in the Unix operating system
- .cat, a top-level domain, applying to the whole Catalan-speaking community
- The terminology used to refer to categories of Structured cabling, e.g.
- "cat 5" for Category 5 cable
People
Cat is also a nickname, usually but not always for the feminine first name Catherine or its variants. People with this name include:
- Cat Deeley (born 1976), English television presenter
- Cat Osterman (born 1983), American softball player
- Cat Stevens (born 1948 as Steven Demetre Georgiou), British musician and philanthropist now known as Yusuf Islam
- Cat Whitehill (born 1982), American soccer player
- Cat Cora (born 1967 as Catherine Cora), American chef
Fictional characters
- Cat (Red Dwarf), a character in the TV show Red Dwarf
- Cat, Holly Golightly's cat in the movie Breakfast at Tiffany's
- Cat, a character on a Nickelodeon show Victorious, played by Ariana Grande
Other uses
- Cat (zodiac), a Vietnamese sign
- Catalytic converter, colloquially named cat, a component of the exhaust system of a vehicle
- Cat, common name for the Kingdom of Cait, a Pictish kingdom during the Dark Ages
Abbreviations
CAT or C.A.T. may refer to:
Companies and organizations
- CAT Catalytic Center, a catalysis research center in Aachen, Germany
- Cambridge Antibody Technology, a UK biotechnology company
- Caterpillar Inc., a manufacturer of construction and mining equipment, turbines and engines
- Centre for Alternative Technology, an eco-centre in Powys, mid-Wales, UK
Sports
- Club Atlético Talleres, a sports club in Córdoba, Argentina
- Club Atlético Tucumán, a football club in Tucumán, Argentina
Transportation
- Canby Area Transit, a public transit agency serving Canby, Oregon, USA and vicinity
- Capital Area Transit (Harrisburg), a public transit agency serving the Harrisburg region, Pennsylvania, USA
- Capital Area Transit (Raleigh), a public transit agency serving the Raleigh region, North Carolina, USA
- City Airport Train, a public transit agency serving between the city and the airport of Vienna, Austria
- Chatham Area Transit, a public transit agency serving the Savannah region, Georgia, USA
- Civil Air Transport, a Chinese airline established in 1946, later owned by the CIA, that stopped its operations in 1968
- Clear-air turbulence, a kind of turbulence that is potentially dangerous for air transport
- Clemson Area Transit, a public transit agency serving the Clemson region, South Carolina, USA
- Perth Central Area Transit, a range of buses operating in the free public-transport region of the central city of Perth, Australia
- A minibus agency in Camarillo, California, operating one scheduled line and dial-a-ride services for the disabled
Science, medicine and technology
- Catadioptric optical system, informally a cat, particularly in telescopes
- Catalase, an enzyme
- Chloramphenicol acetyltransferase, an enzyme
- Computed axial tomography or CAT scan, a medical imaging X-ray technology
- Cherenkov Array at Themis, an atmospheric Cherenkov imaging telescope dedicated to gamma-ray astronomy
- Cognitive analytic therapy, a psychological therapy
Other
- Canadian Army Trophy, a NATO tank gunnery competition
- Cap and trade, economic incentives for achieving reductions in the emissions of pollutants
- CAT (magazine), an international civil simulation and training journal
- Central Africa Time, a time zone used in central and southern Africa
- Certified Accounting Technician, a qualification recognized in the UK
- Coital alignment technique, a sexual position designed to maximize clitoral stimulation
- Common Admission Test, an entrance exam conducted by the Indian Institutes of Management
- Competition Appeal Tribunal, a law in the United Kingdom
- Computerized adaptive testing, a method for administering tests
- Computer-assisted translation or computer-aided translation
- Confidential Assassination Troop, a manhua series created by Fung Chin Pang
- United Nations Convention Against Torture, a human rights instrument
- Counter Assault Team, a unit within the United States Secret Service