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

Keep scrolling for more

Other Words from window

windowless \ ˈwin-​dō-​ləs How to pronounce windowless (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.
See More

Recent Examples on the Web

Then put one bright red decal on the plastic bag and another on your front door or window. courant.com, "Community News For The Putnam-Killingly Edition," 15 July 2019 High ceilings, floor-to-ceiling windows and French doors bring a bright, airy feel to the nearly 9,400 square feet of living space. Lauren Beale, latimes.com, "Vintage SoCal: 1920s estate in La Cañada Flintridge is still the bee’s knees," 12 July 2019 Make sure doors and windows have tight-fitting screens, no holes and remain closed. Stephanie Innes, azcentral, "A Maricopa County resident has died from West Nile virus. It's the first death of 2019," 11 July 2019 The state Department of Health and Social Services in a Wednesday statement encouraged people sensitive to smoke to limit their exposure by staying indoors with windows and doors closed and running air filters or air purifiers. Madeline Mcgee, Anchorage Daily News, "Red flag wildfire warning issued for much of Alaska; smoke chokes Fairbanks," 11 July 2019 Consider replacing ill-fitting doors and windows with quieter ones, like those from Pella’s new Lifestyle Series, which have sound control glass to better block outdoor noises. Good Housekeeping Editors, Good Housekeeping, "What Is Noise Pollution? Everything You Need to Know About the New Public Health Threat," 8 July 2019 For those inside already, officials recommend staying away from windows and doors; avoiding showering, bathing, washing dishes, or doing laundry; and avoiding contact with metal objects like yard equipment or bicycles. Adam Sennott, BostonGlobe.com, "Video shows bolt of lightning striking boat in South Boston," 7 July 2019 Reassuring, too, was the sound floating through the windows and screen doors of an Orioles game being broadcast on a radio. Jacques Kelly, baltimoresun.com, "Jacques Kelly: Baltimore summers before the advent of air conditioning were just 'Too Darn Hot'," 6 July 2019 Throughout the entire standoff, neighbors were on lockdown as they were told to stay inside their homes and away from windows and doors until the situation was over. Micah Walker, Detroit Free Press, "Report: St. Clair Shores standoff ends with gunman allegedly dead," 6 July 2019

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.

See More

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

Keep scrolling for more

Learn More about window

Statistics for window

Last Updated

18 Jul 2019

Look-up Popularity

Time Traveler for window

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

See more words from the same century

Keep scrolling for more

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

Keep scrolling for more

More from Merriam-Webster on window

Spanish Central: Translation of window

Nglish: Translation of window for Spanish Speakers

Britannica English: Translation of window for Arabic Speakers

Britannica.com: Encyclopedia article about window

Comments on window

What made you want to look up window? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

characterized by aphorism

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!