window
A window is an opening in a wall, door, or vehicle that is usually filled with glass to let in light and air. It allows people to see outside while remaining inside a structure.
Examples
3 of 5I opened the window to let some fresh air into the room.
I opened the window to let some fresh air into the room.
The building features floor-to-ceiling windows to provide a panoramic view of the city.
The building features floor-to-ceiling windows to provide a panoramic view of the city.
Could you close the window? It's getting a bit chilly.
Could you close the window? It's getting a bit chilly.
Word Family
Memory Tip
Think of the word's origin: 'wind-eye.' It is the 'eye' of the house that lets the 'wind' (air) and light in.
Quick Quiz
It is very hot in here. Can you ___ the window?
Correct!
The correct answer is: open
Examples
I opened the window to let some fresh air into the room.
everydayI opened the window to let some fresh air into the room.
The building features floor-to-ceiling windows to provide a panoramic view of the city.
formalThe building features floor-to-ceiling windows to provide a panoramic view of the city.
Could you close the window? It's getting a bit chilly.
informalCould you close the window? It's getting a bit chilly.
Researchers observed the bird's behavior through a one-way window.
academicResearchers observed the bird's behavior through a one-way window.
We have a two-hour window to complete the system update before the office opens.
businessWe have a two-hour window to complete the system update before the office opens.
Word Family
Common Collocations
Common Phrases
window shopping
looking at goods in shop windows without intending to buy anything
window of opportunity
a short period of time during which an action can be taken
go out the window
to disappear or stop being effective
Often Confused With
A window allows you to see through it to the other side, while a mirror reflects your own image.
Usage Notes
The word 'window' is used for physical openings in buildings, but it is also very common in computing to describe a rectangular area on a computer screen.
Common Mistakes
Learners sometimes use the preposition 'at' instead of 'out' (e.g., 'look at the window' instead of 'look out the window' when they want to see the garden).
Memory Tip
Think of the word's origin: 'wind-eye.' It is the 'eye' of the house that lets the 'wind' (air) and light in.
Word Origin
Derived from the Old Norse 'vindauga,' which literally means 'wind-eye' (vindr 'wind' + auga 'eye').
Grammar Patterns
Cultural Context
In many cultures, 'window shopping' is a common social pastime for friends walking through city centers or malls.
Quick Quiz
It is very hot in here. Can you ___ the window?
Correct!
The correct answer is: open
Related Grammar Rules
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