window A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air. Modern windows are usually glazed or covered in some other transparent or translucent ma ...

is an opening in an otherwise solid, opaque surface, through which light can pass. Window may also refer to:

Aeronautics

Launch window In the context of spaceflight, launch period is the collection of days, and launch window is the time period on a given day, during which a particular rocket A rocket (from , and so named for its shape) is a vehicle that uses jet propulsio ...

, in aerospace, a time period in which a particular rocket must be launched *

Chaff (radar countermeasure) Chaff, originally called Window or Düppel, is a Radar jamming and deception, radar countermeasure involving the dispersal of thin strips of aluminium, Metallizing, metallized glass fiber, or Metallised film, plastic. Dispersed chaff produces a ...

(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. Louis Cameron Gossett Jr. (May 27, 1936 – March 29, 2024) was an American actor. He made his stage debut at the age of 17. Shortly thereafter, he successfully auditioned for the Broadway theatre, Broadway play ''Take a Giant Step.'' Gossett co ...

* "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 ''Extraordinary Machine'' is the third studio album by American singer-songwriter Fiona Apple, released by Epic Records in the United States on October 4, 2005 and in Europe on October 3, 2005. Produced by Jon Brion, it was expected to be released ...

'' * "Window", a song by Genesis from their 1969 album ''

From Genesis to Revelation ''From Genesis to Revelation'' is the debut studio album by English rock band Genesis, released on 28 March 1969 on Decca Records. The album originated from a collection of demos recorded in 1967 while the members of Genesis were pupils of Charter ...

'' * "Window", a song by

Still Woozy Still Woozy is the solo project of Sven Eric Gamsky (born June 23, 1992), an American singer and songwriter from Moraga, California. Gamsky grew up in Moraga, California, in the San Francisco Bay Area. He began recording his own music at the ...

, 2020 * "Window", a song by Tyler, the Creator from his 2011 album ''

Goblin A goblin is a small, grotesque, monster, monstrous humanoid creature that appears in the folklore of multiple European cultures. First attested in stories from the Middle Ages, they are ascribed conflicting abilities, temperaments, and appearan ...

Computing

Window (computing) In computing, a window is a Graphical widget, graphical control element. It consists of a visual area containing some of the graphical user interface of the program it belongs to and is framed by a #Window decoration, window decoration. It usuall ...

, 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 X Window System (X11, or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X originated as part of Project Athena at Massachusetts Institute of Technology (MIT) in 1984. The X protocol has been at ...

, 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 Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...

, 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 An atmospheric window is a region of the electromagnetic spectrum that can pass through the atmosphere of Earth The atmosphere of Earth is composed of a layer of gas mixture that surrounds the Earth's planetary surface (both lands and oceans) ...

or Astronomical window, those parts of the electromagnetic spectrum that are not absorbed by the Earth's atmosphere **

Radio window The radio window is the region of the radio spectrum that penetrate the Earth's atmosphere. Typically, the lower limit of the radio window's range has a value of about 10 MHz (λ ≈ 30 m); the best upper limit achievable from optimal terrestria ...

Optical window The optical window is the portion of the optical spectrum that is blocked by the Earth's atmosphere. The window runs from around 300 nanometers ( ultraviolet-B) up into the range the human eye can detect, roughly 400–700 nm and continues up ...

Infrared window The infrared atmospheric window is an atmospheric window in the infrared spectrum where there is relatively little absorption of terrestrial thermal radiation by atmospheric gases. The window plays an important role in the atmospheric greenhouse ...

Biology

Window period In medicine, the window period for a test designed to detect a specific disease (particularly infectious disease) is the time between first infection and when the test can reliably detect that infection. In antibody-based testing, the window period ...

, in medicine, the time between first infection and detectability

Electronics

Window function In signal processing and statistics, a window function (also known as an apodization function or tapering function) is a mathematical function that is zero-valued outside of some chosen interval. Typically, window functions are symmetric around ...

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

Optics

* Window (optics)

Other uses

Window (geology) 350px, Schematic overview of a thrust system. The hanging wall block is (when it has reasonable proportions) called a erosion.html" ;"title="nappe. If an erosion">nappe. If an erosional hole is created in the nappe that is called a window. A kl ...

(or "fenster"), a hole in a thrust sheet through which the underlying rocks crop out *

Johari window The Johari window is a technique designed to help people better understand their relationship with themselves and others. It was created by psychologists Joseph Luft (1916–2014) and Harrington Ingham (1916–1995) in 1955, and is used primaril ...

, a technique to improve understanding of one's self and the perceptions of others *

Overton window The Overton window is the range of subjects and arguments politically acceptable to the mainstream population at a given time. It is also known as the window of discourse. The key to the concept is that the window changes over time; it can shif ...

, the range of political ideas the public will accept