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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
Oh no
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "Oh no" is correct and usable in written English.
It is typically used to express dismay, concern, or disappointment in response to an unexpected situation. Example: "Oh no, I forgot my wallet at home!"
✓ Grammatically correct
News & Media
Academia
Wiki
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
19 human-written examples
Saturday, September 8 Oh no, oh no, oh no.
News & Media
Oh no!
Oh no! Oh wait.
News & Media
Oh no! Diaz - scores.
News & Media
Oh no! Oh no! Oh no! Oh no!
Wiki
Oh god! Oh no!
News & Media
Oh no, oh no".
News & Media
Oh, no.
Oh no, oh God.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
Oh noes!
News & Media
Oh no..
News & Media
Expert writing Tips
Best practice
Use "oh no" to express immediate reaction to an undesirable event or realization. It's most effective when capturing a spontaneous, emotional response.
Common error
While "oh no" is acceptable in many contexts, avoid using it in highly formal or professional documents. Opt for more sophisticated expressions of concern or disappointment, such as "unfortunately" or "regrettably".
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
Oh no primarily functions as an interjection. It's used to express a sudden feeling of dismay, concern, or realization of a negative situation. As Ludwig AI explains, it conveys an immediate emotional response, similar to how one might react to a problem or error.
Frequent in
News & Media
42%
Academia
29%
Wiki
10%
Less common in
Formal & Business
5%
Science
5%
Reference
4%
Ludwig's WRAP-UP
"Oh no" is a versatile interjection used to express dismay, concern, or regret. Ludwig AI confirms its correctness in written English. While it's commonly used in various contexts, including news, academia, and informal settings, it's advisable to use it sparingly in formal writing. As for alternative phrases, options like "oops", "dear me", and "alas" can offer subtle differences in tone and formality.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Uh oh
Similar to "oh no", but can imply a sense of anticipation or mild trouble.
Oops
A shorter, more informal expression of mild surprise or a minor mistake.
That's not good
A straightforward statement expressing concern about a negative situation.
I messed up
Directly acknowledges a personal error or mistake.
This is terrible
Indicates a strong feeling of distress or negativity about a situation.
Dear me
A more old-fashioned expression of concern or dismay.
What a pity
Expresses regret or disappointment about a situation.
Alas
A literary expression of sorrow or regret, more formal than "oh no".
Bad news
A concise way to introduce or acknowledge an unfavorable development.
I'm afraid
Signals bad news or a disappointing revelation, slightly more formal.
FAQs
How can I use "Oh no" in a sentence?
"Oh no" is an interjection used to express dismay, disappointment, or realization of a problem. For example, "Oh no, I forgot my keys!" or "Oh no, the project is due tomorrow!"
What's the difference between "Oh no" and "Uh oh"?
Both "Oh no" and "Uh oh" express concern, but "Uh oh" often implies a sense of impending trouble or anticipation of something negative, while "Oh no" expresses more immediate dismay. Consider the sentence: "I hear a strange noise coming from the car... "Uh oh"." versus "Oh no, I spilled coffee on my shirt!"
What are some alternatives to saying "Oh no"?
Depending on the context, you could use alternatives like "oops", "dear me", "alas", or "that's not good".
Is it appropriate to use "Oh no" in formal writing?
While "Oh no" is widely understood, it's generally considered informal. In formal writing, it's better to use more measured expressions of concern or regret. Consider rephrasing with something like "Unfortunately" or "Regrettably".
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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