window

noun
win·dow
wĭnʹdō

An opening, usually covered by one or more panes of clear glass, to allow light and air from outside to enter a building or vehicle.

Example

“She opened the window to let some air in.”

Other meanings

An opening, usually covered by glass, in a shop which allows people to view the shop and its products from outside; a shop window.
The shutter, casement, sash with its fittings, or other framework, which closes a window opening.

A kind of

framework

Kinds of window

bow window
display window
double glazing
picture window
rose window
sliding window
stained-glass window
storm window

Example sentences

“It's not warm enough to open the window.”
Tatoeba · shekitten · CC0
“Make sure the windows are rolled up.”
Tatoeba · ddnktr · CC0
“He opened the window to feel the breeze.”
Tatoeba · Igider · CC0

Word history

From Old Norse "vindauga".

Where this comes from

This definition is adapted from “window” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.