Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
crack a window
Grammar usage guide and real-world examplesUSAGE SUMMARY
"crack a window" is a correct and usable phrase in written English.
It means to open a window slightly, usually for the purpose of letting in fresh air. Example: "The room was stuffy, so I decided to crack a window to let in some fresh air."
✓ Grammatically correct
News & Media
Wiki
Alternative expressions(2)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
11 human-written examples
But while you hold that downward dog I am just going to crack a window.
News & Media
Besides, if I were lazy or sloppy, I could easily crack a window, stain a rug, or lose my life.
News & Media
On "Nosetalgia," he talks process: "Arm & Hammer and a Mason jar, that's my dinner date/ Then crack a window in the kitchen, let it ventilate/ 'Cause I let it sizzle on the stove like a minute steak".
News & Media
"You'll eventually need to leave the room or crack a window or you'll get a headache," she told me later.
News & Media
When Rhee decided to crack a window to let in some fresh air, in flew a bumblebee.
News & Media
Also crack a window if it allows.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
49 human-written examples
How to crack a Windows password with Ophcrack Live CD [Lifehacker].
News & Media
Mr. Lubovitch cracks a window on a harsh bedroom scene in which Ms. Skarpetowska, threats aside, always returns for more.
News & Media
At a 7-Eleven storefront on St. Marks Place, "one guy swung a pole" and cracked a window in two places, said Mohammed Habibur Rahman, who works across the street.
News & Media
Hadrick's e-mail updates grew chattier as time went on, cracking a window on the rancher's life and outlook.
News & Media
You won't find the recipe for neanderthal bread in "Sicilian Feasts" (Hippocrene Books, $24.95) by Giovanna Bellia La Marca, from Cliffside Park, but the story behind it cracks a window on the author's kitchen philosophy.
News & Media
Expert writing Tips
Best practice
Be mindful of regional variations. While "crack a window" is widely understood, some regions may have alternative expressions for the same action.
Common error
Avoid using "crack a window" when you intend to open the window fully. This phrase specifically implies a small opening. To avoid confusion, use "open the window" for a full opening.
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
Crack a window functions as a verb phrase, specifically indicating an action. As Ludwig AI confirms, it is a correct and usable phrase. The examples provided demonstrate its use in practical contexts, mostly for ventilation or allowing fresh air into a space.
Frequent in
News & Media
40%
Wiki
30%
Formal & Business
10%
Less common in
Academia
5%
Science
5%
Encyclopedias
5%
Ludwig's WRAP-UP
The phrase "crack a window" is a common and grammatically correct way to describe slightly opening a window, usually to let in fresh air. Ludwig AI confirms its validity and usability. It is most frequently used in News & Media and Wiki contexts, indicating a neutral to informal register. When using this phrase, be sure that you are referring to a small opening rather than a full one. Related phrases include "open a window slightly" and "leave a window ajar". Practical advice for writers involves considering the context and purpose, ensuring the phrase accurately reflects the intended degree of openness. Common errors involve using the phrase when intending a full opening. In short, "crack a window" is a versatile phrase for everyday scenarios requiring a touch of fresh air.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
open a window slightly
Focuses on the action of opening, but emphasizes the small degree of opening.
partially open a window
Specifies that the window is not fully opened.
leave a window ajar
Emphasizes the state of the window being slightly open.
open the window a crack
Uses 'crack' as a noun to describe the small opening.
vent the room
Focuses on the result of opening the window, which is to ventilate the room.
air out the room
Describes the action of letting fresh air into the room, implying a window is opened.
let some fresh air in
Describes the purpose of opening the window.
slide the window open a bit
Focuses on the sliding action and the small extent of the opening.
ease the window open
Implies a gentle action of opening the window.
prop the window open a smidge
Suggests using an object to keep the window slightly ajar.
FAQs
What does "crack a window" mean?
To "crack a window" means to open it slightly, typically to let in some fresh air.
What can I say instead of "crack a window"?
You can use alternatives like "open a window slightly", "partially open a window", or "leave a window ajar" depending on the context.
Is it correct to say "crack open a window"?
Yes, "crack open a window" is also a correct and commonly used variation of "crack a window".
When is it appropriate to "crack a window"?
It's appropriate to "crack a window" when you want to allow some fresh air into a space without fully opening the window, such as when the weather is cold or you only need a small amount of ventilation.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested