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
fair warning
Grammar usage guide and real-world examplesUSAGE SUMMARY
"fair warning" is correct and usable in written English.
It is a phrase used to caution someone that something bad could happen if they do not take care or act responsibly. For example, "My teacher gave me fair warning that if I didn't turn in my assignment on time, I'd get a zero."
✓ Grammatically correct
News & Media
Formal & Business
Alternative expressions(20)
be forewarned
let the buyer beware
advance notice
due notice
prior notification
Consider yourself warned
Be forewarned
Advance notice
Heads up
Mark my words
Take heed
balanced warning
accurate warning
righteous warning
appropriate warning
reasonable warning
faithful warning
honest warning
exhibition warning
fair exhortation
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
59 human-written examples
Fair warning.
News & Media
Consider this fair warning.
News & Media
E'en so, fair warning.
News & Media
Fair warning, Amsterdam chefs.
News & Media
A fair warning.
News & Media
That's fair warning.
News & Media
Please regard this paragraph as fair warning.
News & Media
"Fair warning now," Mr. Redden said.
News & Media
Fair warning: They may make you cringe.
News & Media
Fair warning: ambrosia doesn't come cheap.
News & Media
UNIONS have given America fair warning.
News & Media
Expert writing Tips
Best practice
Use "fair warning" to clearly signal an upcoming potential negative consequence, ensuring the recipient has time to prepare or adjust their actions.
Common error
While "fair warning" is generally acceptable, avoid using it excessively in highly formal or academic writing. Opt for more sophisticated alternatives like "be forewarned" or "take heed" to maintain a professional tone.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "fair warning" functions primarily as an interjection or introductory phrase used to alert someone about potential negative consequences or risks associated with a particular action or situation. It serves to preface a cautionary statement, as Ludwig highlights.
Frequent in
News & Media
65%
Formal & Business
15%
Science
5%
Less common in
Academia
5%
Encyclopedias
3%
Wiki
2%
Ludwig's WRAP-UP
In summary, "fair warning" is a commonly used phrase that serves to alert individuals to potential risks or negative outcomes. As confirmed by Ludwig, it's grammatically sound and versatile, fitting into numerous contexts from news reporting to professional advice. Its function is to provide advance notice, empowering people to prepare for or avoid undesirable situations. While generally neutral in tone, writers should adjust their language based on the formality required by the audience, swapping in phrases like "advance notice" or "be forewarned" for more formal settings.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Consider yourself warned
A direct and sometimes assertive way to state that a warning has been given.
Be forewarned
Highlights the importance of being prepared due to the warning.
Advance notice
Focuses on the timing of the warning, emphasizing that it's provided beforehand.
You've been told
Emphasizes that the recipient has received the warning and is now accountable.
Heads up
An informal way to give a friendly warning, often used in casual settings.
Mark my words
Adds emphasis to the warning, suggesting it's crucial to remember.
Caveat emptor
A Latin phrase meaning "let the buyer beware", placing responsibility on the recipient.
A word to the wise
Implies that those who are intelligent will understand and heed the warning.
Take heed
A formal expression that urges someone to pay attention to a warning.
Let the record show
Suggests that the warning is being formally documented.
FAQs
How can I use "fair warning" in a sentence?
You can use "fair warning" to introduce a cautionary statement. For example, "Fair warning: this review contains spoilers" or "I'm giving you "fair warning", this task is more difficult than it looks."
What's a more formal alternative to "fair warning"?
If you need a more formal phrasing, consider using "be forewarned" or "let the buyer beware". These alternatives provide a similar caution but with a more serious tone.
Is "fair warning" appropriate for professional communication?
Yes, "fair warning" is suitable for many professional contexts, especially when delivering constructive feedback or setting expectations. However, consider your audience and the situation; a more formal option like "advance notice" may be preferable in certain scenarios.
Can "fair warning" be used in legal documents?
While the term "fair warning" is generally understood, legal documents often require precise and unambiguous language. Consider using more specific terms such as "due notice" or "prior notification" to ensure clarity and legal sufficiency.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested