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
assurance that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "assurance that" is correct and usable in written English.
It can be used when you want to express a guarantee or confidence regarding a particular situation or outcome. Example: "We provide our clients with the assurance that their data will be kept secure and confidential."
✓ Grammatically correct
News & Media
Science
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
58 human-written examples
"But generally speaking, there is no assurance that is happening".
News & Media
Petraeus, Mullen, McChrystal et al acted with the supreme self assurance that comes from two sources.
News & Media
Just more war, and the assurance that he would win.
News & Media
There is no assurance that fears will soon abate.
News & Media
"There can be no assurance that these contributions will continue".
News & Media
assurance that he casts over the clubhouse and the stadium.
News & Media
There is, of course, no assurance that RFco will succeed.
News & Media
"Do you have any assurance that we will?
News & Media
Also important is assurance that your instructor is well qualified.
News & Media
An assurance that the transaction is completely legal.
News & Media
It is the strongest assurance that recovery will endure.
News & Media
Expert writing Tips
Best practice
Use "assurance that" when you want to convey a sense of certainty and reliability about a future event or current situation. Be sure the context supports this level of confidence.
Common error
Avoid using "assurance that" when the situation is uncertain or speculative. Overusing it can undermine your credibility if the assured outcome does not materialize.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "assurance that" functions as a connector, linking a statement of confidence or guarantee to a specific outcome or condition. It indicates a firm belief or promise regarding a particular event or situation. Ludwig AI confirms its correct and frequent usage.
Frequent in
News & Media
55%
Science
25%
Formal & Business
10%
Less common in
Encyclopedias
2%
Wiki
2%
Social Media
1%
Ludwig's WRAP-UP
In summary, the phrase "assurance that" is a versatile and frequently used expression that serves to convey confidence, guarantee, or certainty about a particular outcome. As Ludwig AI confirms, it is grammatically correct and widely applicable across diverse contexts, from News & Media to Science. When using "assurance that", it's important to ensure that the level of certainty aligns with the actual situation to avoid undermining your credibility. Alternatives such as "certainty that" or "guarantee that" can offer subtle variations in meaning. By understanding its nuances and usage patterns, you can effectively incorporate the phrase "assurance that" into your writing to create a sense of trust and reliability.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
certainty that
Replaces "assurance" with "certainty", emphasizing a strong belief in the truth or correctness of something.
guarantee that
Substitutes "assurance" with "guarantee", suggesting a formal promise or warranty.
confirmation that
Uses "confirmation" instead of "assurance", highlighting the act of verifying or validating something.
confidence that
Replaces "assurance" with "confidence", focusing on a feeling of trust or belief in someone or something.
the belief that
Replaces the entire phrase with a noun phrase focusing on the act of believing something.
the conviction that
Emphasizes a strong and firm belief, often based on personal experience or reasoning.
proof that
Highlights the evidence or demonstration that something is true or correct.
evidence that
Focuses on presenting facts or information that support a claim or assertion.
the understanding that
Emphasizes a mutual agreement or awareness of a particular fact or situation.
the knowledge that
Highlights the possession of facts, information, or skills acquired through experience or education.
FAQs
How can I use "assurance that" in a sentence?
Use "assurance that" to express a feeling of confidence and certainty about something. For example, "The company provided "assurance that" all products meet safety standards."
What are some alternatives to "assurance that"?
Alternatives to "assurance that" include "certainty that", "guarantee that", or "confirmation that". The best choice depends on the specific nuance you want to convey.
Is there a difference between "assurance that" and "promise that"?
"Assurance that" conveys a sense of confidence and reliability, while "promise that" implies a commitment to perform a specific action. "Assurance" focuses on a state of being, whereas "promise" is an active declaration.
When is it inappropriate to use "assurance that"?
It's best to avoid using "assurance that" when there's no real basis for certainty or when the situation is highly speculative. In such cases, it's more accurate to express hope or possibility rather than "assurance that".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested