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
rest assured
Grammar usage guide and real-world examplesUSAGE SUMMARY
"rest assured" is correct and usable in written English.
It is a phrase to tell someone that they can trust in the truth or reliability of something. Example sentence: "Rest assured, your package will arrive on time."
✓ Grammatically correct
News & Media
Academia
Sport
Lifestyle
Money
Food
Opinion
Culture
Automobiles
Business
Environment
Politics
Arts
Sports
Alternative expressions(20)
be certain
have no doubt
you can be sure
be confident
believe me
it is guaranteed
without a doubt
trust me on this
Be confident that
go back to your chair
nothing to be concerned about
Take your seat again
but wary not
Please be seated
but fret not
you can be sure that
I can confirm
I swear to you
I provided you
be completely positive
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
"Do not rest assured.
News & Media
So rest assured".
News & Media
"Well, rest assured.
Academia
Glenn Beck can rest assured.
News & Media
"But rest assured" he added.
News & Media
You can rest assured of that.
News & Media
A full report shall follow, rest assured.
News & Media
That you can rest assured of".
News & Media
"I'll be there, rest assured.
News & Media
Then, at last, we can rest assured.
News & Media
Things, rest assured, won't stay the same.
News & Media
Expert writing Tips
Best practice
When providing assurance, be specific. For example, instead of "Rest assured, everything will be fine", say "Rest assured, your package will arrive by Friday".
Common error
While "rest assured" is a useful phrase, avoid using it repeatedly in a single piece of writing. Overuse can make your writing sound insincere or repetitive. Vary your language by using synonyms like "be confident" or "have no doubt".
Source & Trust
91%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "rest assured" functions as an idiomatic expression used to offer reassurance or guarantee a particular outcome. It is typically used to alleviate concerns or to confirm the reliability of a statement. Ludwig AI confirms the phrase is both grammatically correct and widely usable.
Frequent in
News & Media
49%
Academia
13%
Formal & Business
7%
Less common in
Sports
5%
Lifestyle
3%
Science
3%
Ludwig's WRAP-UP
In summary, "rest assured" is a widely used and grammatically sound phrase that conveys reassurance and confidence. Ludwig AI confirms that this phrase is suitable for many writing contexts. It's most frequently found in news articles and media, but also appears in academic and business settings. While versatile, it's best to use it judiciously to maintain its impact. Alternatives like "be certain" or "have no doubt" can help prevent overuse. When using "rest assured", aim to provide specific assurances to maximize clarity and effectiveness.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
be certain
Emphasizes a strong degree of certainty on the speaker's end.
have no doubt
Directly expresses the absence of doubt about something.
you can be sure
Offers a direct assurance to the listener.
be confident
Suggests a strong belief in a positive outcome.
take it as gospel
Implies absolute truth and reliability, though it's more informal.
you may trust
A more formal way of inviting trust.
believe me
A personal assurance from the speaker.
it is guaranteed
Offers a formal guarantee of something.
without a doubt
Underscores the certainty of a statement.
trust me on this
A more casual way to ask for trust in a specific situation.
FAQs
How to use "rest assured" in a sentence?
"Rest assured" is used to confidently assure someone of something. For example, "Rest assured, we are taking this matter very seriously" or "You can rest assured that your information is safe with us".
What can I say instead of "rest assured"?
You can use alternatives like "be certain", "have no doubt", or "you can be sure" depending on the context.
Is "rest assured that" grammatically correct?
Yes, "rest assured that" is grammatically correct. It is commonly followed by a clause that provides the specific details of the assurance. For example, "Rest assured that we will handle everything".
What is the difference between "rest assured" and "rest easy"?
"Rest assured" is used to provide confidence or certainty about a specific outcome or situation. "Rest easy" is often used to offer comfort, suggesting someone should not worry, often in the context of death or difficult situations. The phrases are not interchangeable.
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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
91%
Authority and reliability
4.6/5
Expert rating
Real-world application tested