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
open
Grammar usage guide and real-world examplesUSAGE SUMMARY
The word 'open' is correct and usable in written English.
You can use it as a verb, noun, adjective, or adverb in English. Example sentence: His heart had been open to love ever since the day he first saw her.
✓ Grammatically correct
News & Media
Travel
Sport
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
60 human-written examples
It's enigmatic and open to interpretation, and is the cover that works so well for The Endless River".
News & Media
"It was sort of tipped open at the front".
News & Media
It's an open secret".
News & Media
We hope that Google, and all search engines subject to the ruling, will open up.
News & Media
Chope asked Cameron in the first question at prime minister's questions: "Can [he] say in response to the many concerns expressed in yesterday's debate will he ensure that civil partnerships are open to heterosexual couples on an equal basis with homosexual couples?" The prime minister replied: "I will obviously listen carefully to what he says.
News & Media
In the Faroes, in "European" waters, thousands of pilot whales die each year, driven from the open Atlantic on to the islands' beaches and butchered.
News & Media
While polls remain open please refrain from disclosing your voting choices.
News & Media
Others, such as Rep Michele Bachmann and Senator Ted Cruz, revelled in the government shutdown, then pitched a fit when they discovered that the parks and memorials in DC's care weren't open (logic isn't a Tea Party virtue).
News & Media
This should make it appear as if the egg is half open (as shown in the picture).
News & Media
2. The Competition is not open to employees or agencies of Guardian News & Media Limited ("GNM" or the "Promoter"), their group companies or family members, freelance contributors to GNM, or anyone else connected to the Competition.
News & Media
As Iran enters a critical period in its history, with elections in June, sanctions biting and the increasing threat of an Israeli attack, the Guardian has formed a partnership with the award-winning Tehran Bureau to open a window on life in the Islamic republic.
News & Media
Expert writing Tips
Best practice
When using "open" to describe a business, specify the hours of operation for clarity.
Common error
Avoid using "open" to describe feelings or abstract concepts if a more specific adjective like "vulnerable" or "receptive" would be more appropriate.
Source & Trust
94%
Authority and reliability
4.8/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "open" is as an adjective, describing a state of being unclosed or accessible. It can also function as a verb, indicating the action of making something accessible, and as a noun, as seen in examples related to sports events like the French Open. According to Ludwig, the word "open" is correct and usable in written English.
Frequent in
News & Media
38%
Travel
12%
Sport
12%
Less common in
Formal & Business
8%
Science
8%
Opinion
8%
Ludwig's WRAP-UP
The word "open" is a versatile term used as an adjective, verb, and noun, primarily signifying accessibility or a state of being unclosed. Ludwig AI confirms its correctness and broad usability in English. With frequent appearances in News & Media, Travel and Sport contexts, its register remains generally neutral. When writing, ensure that "open" is used with appropriate specificity, especially in abstract contexts, to avoid ambiguity. Related alternatives include "accessible", "available", and "unobstructed". Use these alternatives depending on the context to improve clarity and precision.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
unclosed
Indicates a state of not being closed, similar to "open" but emphasizes the lack of closure.
accessible
Implies the possibility of being approached or entered, akin to "open" in context of availability.
available
Suggests readiness for use or engagement, mirroring "open" when referring to opportunities or services.
unobstructed
Conveys the absence of barriers or impediments, much like "open" implies a clear path or access.
unrestricted
Highlights the lack of limitations or constraints, similar to "open" in denoting freedom of access.
unsealed
Focuses on the condition of not being sealed, akin to "open" regarding containers or documents.
unfastened
Emphasizes the lack of fastening, similar to "open" when describing doors or closures.
public
Highlights the characteristic of being accessible to all, much like "open" suggests general availability.
exposed
Suggests being uncovered or revealed, similar to "open" when referring to vulnerabilities or secrets.
receptive
Implies a willingness to consider or accept new ideas, mirroring "open" in context of attitudes.
FAQs
How can I use "open" in a sentence?
You can use "open" in sentences such as "The door is open", "Are you open to suggestions?", or "The shop will open at 9 AM".
What is a synonym for "open"?
Synonyms for "open" include "accessible", "available", and "unobstructed" depending on the specific context.
When should I use "open" vs. "opened"?
"Open" is used as an adjective to describe the current state (e.g., "the window is open"), while "opened" is the past tense or past participle of the verb "to open" (e.g., "he opened the door").
What does it mean for something to be an "open secret"?
An "open secret" refers to something that is supposedly confidential but is widely known or suspected to be true, similar to "common knowledge".
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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
94%
Authority and reliability
4.8/5
Expert rating
Real-world application tested