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 of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "assurance of" is correct and usable in written English.
It can be used when expressing a guarantee or confidence in something, often in formal or professional contexts. Example: "We provide an assurance of quality in all our products to ensure customer satisfaction."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(7)
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
It would broaden the assurance of supply.
News & Media
Call it the assurance of this music.
News & Media
This mission is not about the assurance of safety.
News & Media
But without that assurance of victory, his supporters are defecting.
News & Media
There's no assurance of life along the Line of Control.
News & Media
In Baghdad, that necessary assurance of doom is still lacking.
News & Media
And there's no assurance of me getting out of here".
News & Media
No assurance of return in an investor's lifetime.
News & Media
They had the cool assurance of a photograph.
News & Media
Studies of birth-control pills, he said, provide some assurance of safety.
News & Media
And never again would the people stage an uprising without assurance of success.
News & Media
Expert writing Tips
Best practice
When aiming for clarity and formality in legal or business documents, use "assurance of" to convey a strong sense of reliability or guarantee.
Common error
Avoid using "assure" as a noun. "Assurance" is the correct noun form. For example, use "assurance of quality" instead of "assure of quality".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "assurance of" functions primarily as a noun phrase acting as a complement to verbs or prepositions. It expresses the state of being certain or confident about something. Ludwig AI examples show its common usage across diverse contexts, confirming its role in conveying confidence or guarantee.
Frequent in
News & Media
42%
Science
37%
Formal & Business
10%
Less common in
Wiki
5%
Encyclopedias
3%
Reference
3%
Ludwig's WRAP-UP
The phrase "assurance of" is a grammatically sound and frequently used way to express certainty, guarantee, or confidence, according to Ludwig AI. Predominantly found in News & Media and Science contexts, it maintains a neutral to formal register. To ensure effective communication, use "assurance of" to convey reliability and avoid the common error of using "assure" as a noun. Alternatives such as "guarantee of" or "certainty of" can be used to add nuance. In essence, mastering the usage of "assurance of" enhances clarity and credibility in both writing and speech.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
guarantee of
Replaces "assurance" with "guarantee", emphasizing a formal promise or security.
certainty of
Substitutes "assurance" with "certainty", focusing on the state of being without doubt.
guaranteeing of
Similar to guarantee, this highlights the act of ensuring something.
confidence in
Emphasizes trust or belief in someone or something.
promise of
Highlights a declaration assuring that something will happen.
pledge of
Similar to promise, but often implies a more formal or solemn commitment.
warranty of
Used typically in commercial context indicating quality or performance.
insurance for
Focuses on protecting against a specific risk.
collateral of
Specifies something pledged as security for repayment of a loan, to be forfeited in the event of a default.
warrant of
A document issued by a legal or government official authorizing something to be done.
FAQs
How is "assurance of" used in formal writing?
In formal writing, "assurance of" is used to convey a strong sense of certainty or guarantee. For instance, "We provide an "assurance of" quality in our products" indicates a commitment to maintaining high standards.
What are some alternatives to "assurance of"?
You can use alternatives like "guarantee of", "certainty of", or "confidence in" depending on the context.
When should I use "assurance of" versus "insurance for"?
"Assurance of" typically refers to a guarantee or certainty about a quality or outcome, whereas "insurance for" relates to financial protection against specific risks or losses.
Is "assurance of" interchangeable with "guaranteeing of"?
While similar, "guaranteeing of" often refers to the act of providing a guarantee, while "assurance of" describes the state of being assured or the guarantee itself. The nuance is subtle but can affect the sentence's emphasis.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested