A window is an opening in an otherwise solid, opaque surface, through which light can pass.

Window may also refer to:

Aeronautics

  • Launch window, in aerospace, a time period in which a particular rocket must be launched
  • Chaff (radar countermeasure) (originally called Window), during World War II, the dropping of aluminium foil by aircraft to deceive radar installations

Arts and entertainment

  • Window, a 2005 film starring Louis Gossett Jr.
  • "Window" (short story), a 1980 science-fiction short story by Bob Leman
  • Window (album), a 1994 album by Christopher Cross,
  • Window (EP), a 2000 EP by The Microphones
  • "Window", a song by the Album Leaf from their 2004 album In a Safe Place
  • "Window", a song by Fiona Apple from her 2005 album Extraordinary Machine
  • "Window", a song by Foo Fighters from their 2026 album Your Favorite Toy
  • "Window", a song by Genesis from their 1969 album From Genesis to Revelation
  • "Window", a song by Still Woozy, 2020
  • "Window", a song by Tyler, the Creator from his 2011 album Goblin

Computing

  • Window (computing), a display rectangle used by a graphical user interface (GUI), or a text displayed at once among data of whole text
  • X Window System, the system used by most Unix-like operating systems and OpenVMS
  • A window in computer networking, a data transmission period, see sliding window protocol
  • Register window, a feature of some CPUs
  • Microsoft Windows, a computer operating system

People

  • Window Snyder, former Mozilla Corporation security expert
  • Muriel Window, (1892–1965), American actress, singer, vaudeville performer, businesswoman and Ziegfeld Girl

Science and technology

Atmospherics

  • Atmospheric window or Astronomical window, those parts of the electromagnetic spectrum that are not absorbed by the Earth's atmosphere
  • Radio window
  • Optical window
  • Infrared window

Biology

  • Window period, in medicine, the time between first infection and detectability

Electronics

  • Window function, in signal processing, a function that is zero-valued outside of some chosen interval

Optics

  • Window (optics)

Other uses

  • Window (geology) (or "fenster"), a hole in a thrust sheet through which the underlying rocks crop out
  • Johari window, a technique to improve understanding of one's self and the perceptions of others
  • Overton window, the range of political ideas the public will accept

See also

  • The Window (disambiguation)
  • Windows (disambiguation)
  • Windowing (disambiguation)
  • Window of opportunity
  • First window (disambiguation)
  • Second window (disambiguation)

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