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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
keep your hat
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "keep your hat" is correct and usable in written English.
It can be used in contexts where someone is advised to remain cautious or prepared for unexpected situations, often in a metaphorical sense. Example: "As we head into the meeting, keep your hat on; things might get heated."
✓ Grammatically correct
News & Media
Wiki
Academia
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
12 human-written examples
Keep your hat at home.
News & Media
Mr. Obama, keep your hat.
News & Media
Keep Your Hat On starts at the Boathouse by Elvet Bridge, Durham, on Saturday 7 July at 11am.
News & Media
The event also featured graduate student Meredith Ramirez Talusan's "Keep Your Hat On" photography exhibit, which identifies Cornellians across disciplines that engage in social innovation and entrepreneurship.
Academia
The Keep Your Hat On performance this Saturday is unlikely to see anybody getting their collar felt by the Durham constabulary.
News & Media
The Ferryhill Town brass band, dancers from Tin Arts and many others will be taking part in Keep Your Hat On, a carnival performance work devised by Arto Lindsay, specially commissioned as part of this year's ¡Vamos!
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
48 human-written examples
To keep your hats, gloves, scarves and snow boots in order, here are the best ways to stop the blizzard of clutter.
News & Media
You don't necessarily need a heavy knitted hat to keep your head warm, but even a knitted hat can look cute for a casual look.
Wiki
Then start to layer up; lots of thin layers are better than just one big, chunky jumper, and a hat will keep your head warm.
News & Media
Select a fitted hat to keep your head and ears warm.
Wiki
Take a hat to keep your head cool and for use at sunset when the sun is very low in the sky.
Wiki
Expert writing Tips
Best practice
Use "keep your hat" to advise caution or preparedness, especially in situations where things might change unexpectedly or become challenging. It adds a touch of folksiness to your advice.
Common error
Avoid using "keep your hat" in contexts where it's about physically keeping a hat on your head. The phrase is primarily used figuratively to suggest caution or secrecy.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "keep your hat" functions primarily as an idiomatic expression used to convey advice or warning. Ludwig indicates it's used to suggest caution or preparedness for unexpected situations. It can also imply maintaining secrecy.
Frequent in
News & Media
41%
Wiki
23%
Academia
11%
Less common in
Science
14%
Formal & Business
6%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "keep your hat" is a commonly used idiom that advises caution, preparedness, or secrecy. As confirmed by Ludwig, this phrase is grammatically correct and versatile. It appears most frequently in news and media, wiki and academic contexts. While generally neutral in tone, it leans towards informal usage. When using "keep your hat", ensure the context calls for idiomatic advice rather than literal instruction, and be mindful of potential misinterpretations. Alternatives like "stay alert" or "remain cautious" can provide a more direct expression in formal settings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
stay alert
Focuses on maintaining vigilance.
be prepared
Highlights readiness for potential events.
remain cautious
Emphasizes careful and prudent behavior.
be on your guard
Stresses the need to be watchful and ready for threats.
keep an eye out
Suggests watching for something specific.
hold that thought
Indicates to pause or keep a thought private for the moment.
keep it secret
Emphasizes the need to maintain confidentiality.
keep quiet about it
Suggests not disclosing information to others.
mum's the word
A more informal way of saying keep it secret.
play it safe
Advises choosing the least risky option.
FAQs
What does it mean to say "keep your hat on"?
The phrase "keep your hat on" is an idiom that means to stay calm, be patient, or not get too excited about something.
When is it appropriate to use the expression "keep your hat on"?
You can use "keep your hat on" when you want to advise someone to stay calm and not overreact, especially in a potentially stressful or exciting situation. Alternatives include "stay calm" or "be patient".
Is "keep your hat on" a formal or informal expression?
"Keep your hat on" is generally considered an informal expression, suitable for casual conversations or writing. In more formal settings, it's better to use alternatives like "remain calm" or "exercise patience".
Are there any regional variations in the meaning or usage of "keep your hat on"?
While the core meaning of "keep your hat on" is generally consistent, its frequency and specific connotations can vary slightly across different regions. It's always a good idea to be aware of your audience and the context in which you're using the phrase.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested