window

noun, often attributive
win·​dow | \ ˈwin-(ˌ)dō How to pronounce window (audio) \

Definition of window

1a : an opening especially in the wall of a building for admission of light and air that is usually closed by casements or sashes containing transparent material (such as glass) and capable of being opened and shut
c : a space behind a window of a retail store containing displayed merchandise
d : an opening in a partition or wall through which business is conducted a bank teller's window
2 : a means of entrance or access especially : a means of obtaining information a window on history
3 : an opening (such as a shutter, slot, or valve) that resembles or suggests a window
4 : the transparent panel or opening of a window envelope
5 : the framework (such as a shutter or sash with its fittings) that closes a window opening
7 : a range of wavelengths in the electromagnetic spectrum to which a planet's atmosphere is transparent
8a : an interval of time within which a rocket or spacecraft must be launched to accomplish a particular mission
b : an interval of time during which certain conditions or an opportunity exists a window of vulnerability
9 : an area at the limits of the earth's sensible atmosphere through which a spacecraft must pass for successful reentry
10 : any of various rectangular boxes appearing on a computer screen that display files or program output, that can usually be moved and resized, and that facilitate multitasking
out the window
: out of existence, use, or consideration

Other Words from window

windowless \ ˈwin-​dō-​ləs How to pronounce window (audio) , -​də-​ \ adjective

Examples of window in a Sentence

She opened a window to let in some air. I looked out the window and saw a deer. He used vinegar and water to wash the windows. He accidentally broke a window. Can you roll down the car window? The windows along 5th Avenue were all decorated for Christmas. I saw a beautiful dress in the window. He sits behind a window and sells movie tickets. Make sure the address shows through the window in the envelope. A window opened in the fog and we could finally see the ocean.
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Recent Examples on the Web In the video, one of the men shatters a sliding-glass window. Richard Winton, Los Angeles Times, 23 Nov. 2021 Customers will be able to watch employees shape and fill dumplings through a glass window, like at the other restaurants. Elena Kadvany, San Francisco Chronicle, 23 Nov. 2021 Police reportedly saw the man fall into a plate glass window at the ER. Brian Lisik, cleveland, 21 Nov. 2021 Sills also said vaccinated players who contract COVID-19 are testing back in sooner than the 10-day window in a substantial number of cases. Rob Maadi, chicagotribune.com, 17 Nov. 2021 Sills also said vaccinated players who contract COVID-19 are testing back in sooner than the 10-day window in a substantial number of cases. Rob Maaddi, ajc, 17 Nov. 2021 The bullets shattered window glass, which cut the arm of the 63-year-old’s driver. Chris Perkins, sun-sentinel.com, 17 Nov. 2021 Peter Pan leads Wendy, John and Michael Darling through an open window in the nursery to Neverland. Erica Ariel Fox, Forbes, 9 Nov. 2021 The deer spread into the borough’s parks, but were also spotted darting across highways, snacking in yards, or, on more than one occasion, breaking through the plate-glass window of a store and making a mess of the merchandise. Brooke Jarvis, The New Yorker, 8 Nov. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'window.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of window

13th century, in the meaning defined at sense 1a

History and Etymology for window

Middle English windowe, from Old Norse vindauga, from vindr wind (akin to Old English wind) + auga eye; akin to Old English ēage eye — more at eye

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Time Traveler for window

Time Traveler

The first known use of window was in the 13th century

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Dictionary Entries Near window

windore

window

window back

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Last Updated

27 Nov 2021

Cite this Entry

“Window.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/window. Accessed 4 Dec. 2021.

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More Definitions for window

window

noun

English Language Learners Definition of window

: an opening in a wall, door, etc., that usually contains a sheet of glass
: a sheet of glass that covers an opening in a building, vehicle, etc.
: a large window at the front of a store where goods are displayed so that they can be seen by people who are walking past

window

noun
win·​dow | \ ˈwin-dō How to pronounce window (audio) \

Kids Definition of window

1 : an opening in a wall to let in light and air
2 : the glass and frame that fill a window opening
3 : any of the areas into which a computer display may be divided and on which different types of information may be shown

Other Words from window

windowless adjective a windowless room

window

noun
win·​dow | \ ˈwin-(ˌ)dō, -də(-w) How to pronounce window (audio) \

Medical Definition of window

2 : a small surgically created opening : fenestra sense 2a
3 : a usually narrow interval of time or range of values for which a certain condition or an opportunity exists coma and multiorgan failure can occur within hours and there may be a very narrow window of opportunity for transplantation— J. P. A. Lodge — see therapeutic window

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