: 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
: a range of wavelengths in the electromagnetic spectrum to which a planet's atmosphere is transparent
8
a
: 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
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 WebDefenders Sergiño Dest and Chris Richards were last with the squad during the January/February qualifying window. Kevin Baxter, Los Angeles Times, 14 Sep. 2022 Two groups totaling more than 100 survivors appealed the dismissal, contending the two-year window for the claims didn't start until 2018, when the men began to speak out and the school hired a law firm to investigate. Kantele Franko, ajc, 14 Sep. 2022 Unlike most similar vehicles, the Purosangue has no rear windshield wiper, instead relying on airflow to keep the back window clean. Peter Valdes-dapena, CNN, 13 Sep. 2022 People made videos lip-synching to Barrymore’s advice, or pretending to be a neighbor peering out the window at her rain prancing. Rachel Syme, The New Yorker, 13 Sep. 2022 The window at a residence on the 500 block of Dundee Road was reported damaged Sept. 4, police said. Daniel I. Dorfman, Chicago Tribune, 12 Sep. 2022 Athletes who complete a marathon as a nonbinary runner during the qualifying window are eligible to apply for the prestigious race. Gina Martinez, CBS News, 12 Sep. 2022 Edwards was apparently shooting the video from the driver's side of a car, with the window rolled down. Lorenzo Reyes, USA TODAY, 12 Sep. 2022 Borrowers must apply for cancellation before the window closes on Dec. 31, 2023. Nerdwallet, cleveland, 10 Sep. 2022 See More
Word History
Etymology
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