CW may stand for:

Science and technology

  • Centiwatt (cW), one hundredth of a watt
  • Cω, a programming language
  • CW complex, a type of topological space
  • Carrier wave, a periodic waveform that is modulated in radio communication
  • CodeWarrior, an integrated development environment by NXP Semiconductors (originally by Metrowerks) for microcontroller and microprocessor software
  • Constructed wetland, a man-made wetland to treat wastewater
  • Continuous wave, an electromagnetic wave of constant amplitude and frequency, interrupted durations of which were historically used to transmit Morse code, also used in radar systems
  • ClarisWorks, an office suite now known as AppleWorks
  • <math>c_{\rm w}</math>, a drag coefficient used a measure of air resistance
  • Contention window, a network traffic characteristic; see
  • Corded Ware culture, an archaeological culture in Europe
  • Chemical formula of tungsten carbide (more typically denoted WC)

Arts and media

Gaming

  • Castle Wolfenstein, a 1981 video game
  • Cube World, a 2019 video game
  • Content Warning, a 2024 video game

Publications

  • Computerworld, an information technology magazine
  • The Crimson White, a student-run newspaper of the University of Alabama

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Other media

  • The CW, an American television network/programming service
  • The CW Plus, a national feed of the network
  • CW Sports, a sports programming division of the network
  • The CW4Kids, American Saturday morning cartoon children's television block
  • The CW Daytime, an afternoon programming block that was broadcast on the CW
  • CW Seed, a production arm that provided original content created exclusively for digital platforms focused in the areas of animation, game shows, comedy, and digital personalities
  • Creative writing, any writing that goes outside the bounds of normal professional, journalistic, academic, or technical forms of literature
  • CloverWorks, a Japanese animation studio

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Companies

  • Cable & Wireless plc, a British telecommunications company
  • Camping World, an outdoor equipment retailer
  • Colonial Williamsburg
  • Curtiss-Wright, an engineering company (NYSE: CW)

Military

  • Camp Wallace, a United States Army facility
  • Chemical warfare, a type of warfare involving chemical weapons
  • Chemical weapon, a munition using chemical toxicity
  • Chief warrant officer, a relatively low-level rank of military officer
  • Cold War, the state of geopolitical tension following World War II

Places

  • Cook Islands (FIPS Pub 10-4 and obsolete NATO designation), a self-governing island country in the South Pacific Ocean
  • CW postcode area around Crewe, England
  • Canada West, an obsolete designation for the western part of Canada
  • Canada's Wonderland, an amusement park in Vaughan, Ontario, Canada
  • County Carlow, in Ireland
  • Curaçao (ISO 3166-1 alpha-2 country code CW), a Lesser Antilles island in the southern Caribbean Sea and the Dutch Caribbean region
  • Calw, a city in southern Germany
  • Chelmsley Wood, a town in England near Birmingham

Other uses

  • Air Marshall Islands (IATA code CW), an airline based in Majuro, in the Marshall Islands
  • Calendar week
  • Christian Worship: A Lutheran Hymnal, a hymnal used by the WELS
  • Clockwise, motion that proceeds in the same direction as a clock's hands
  • Common Worship, a liturgy of the Church of England
  • Conventional wisdom, a description of ideas that are generally accepted as true
  • Cruiserweight (boxing), a weight class in professional boxing between light heavyweight and heavyweight
  • Content warning, warnings that a work contains writing, images, or concepts that may be harmful or distressing to some people
  • Culture war, a cultural conflict between social groups
  • C. W. Anderson (born 1970), a professional wrestler
  • Cawang railway station, a railway station in Jakarta, Indonesia
  • Cool white (about 4000 degrees Kelvin), a color temperature used for lighting; see Fluorescent-lamp formats