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
guarantee
Grammar usage guide and real-world examplesUSAGE SUMMARY
The word "guarantee" is correct and usable in written English.
You can use it to refer to a promise to assure that something will happen or be the case or that someone will or will not do something. Example sentence: I guarantee that I will finish my project on time.
✓ Grammatically correct
News & Media
Formal & Business
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
His wife, Patience, led the rally with a song asking God to guarantee his victory.
News & Media
If, in addition, the state could guarantee part of the value of the bonds they would quickly have high-quality ratings.
News & Media
Dave Smith, the group's spokesman, said: "Hopefully by the BSG applying for core participant status, we will be able to guarantee that spying on trade unions and passing over information to private companies becomes a theme within the Pitchford inquiry".
News & Media
Earlier this year the appeal court rejected a legal challenge by Debbie Purdy, a multiple sclerosis patient, who wanted a guarantee that her husband would not be prosecuted for helping her to travel to Switzerland to take her life.
News & Media
"That's why the home secretary has agreed a number of significant changes to provide the necessary assurance and guarantee the primacy of the chief constable".
News & Media
If you don't make a claim, there is no guarantee that your premium won't go up if you have even a minor accident.
News & Media
Further ahead, economists warn that a €7.2bn package would merely buy some time for Athens but by no means guarantee Greece could remain in the eurozone – something polls suggest most Greeks want.
News & Media
"We no longer wanted to be the place, the repository where those data lived, because we couldn't guarantee that they were methodologically rigorous enough for us to actually publish," said Erica L Smith, chief of BJS's law enforcement statistics unit.
News & Media
A bookseller recently told me there are several topics that guarantee a bestselling book in the US.
News & Media
The EU's competition commissioner, Joaquín Almunia, had expressed scepticism that the Hinkley Point C scheme could satisfy the EU's stringent state aid criteria after the UK government agreed to underwrite the project with a loan guarantee and a commitment on the price of the electricity generated by the power station.
News & Media
A UN or EU route, ideally in co-ordination, should provide for neutral monitors to be sent within 24 hours to guarantee eastern Ukraine's border with Russia.
News & Media
Expert writing Tips
Best practice
To strengthen a guarantee, provide specific details or evidence that supports your claim. This will increase the recipient's trust and confidence in your assurance.
Common error
Avoid using "guarantee" when the outcome is not completely within your control or is subject to external factors. Instead, use phrases like "likely to" or "highly probable" to reflect a more realistic level of assurance.
Source & Trust
94%
Authority and reliability
4.8/5
Expert rating
Real-world application tested
Linguistic Context
The word "guarantee" functions as both a verb and a noun. As a verb, it means to assure or promise something. As a noun, it refers to an assurance or a warranty. Ludwig AI confirms its correct usage in both forms.
Frequent in
News & Media
34%
Formal & Business
33%
Science
33%
Less common in
Encyclopedias
0%
Wiki
0%
Social Media
0%
Ludwig's WRAP-UP
The term "guarantee" is frequently used in English as both a verb and a noun to express assurance or certainty. Ludwig AI confirms that it follows standard grammar rules, and our analysis reveals that it's most commonly found in news, business, and science contexts. When using "guarantee", be precise about what you are assuring to avoid ambiguity. While "guarantee" is widely accepted, be cautious about overstating certainty in situations beyond your control. Related phrases like "assure", "warrant", and "ensure" offer alternative ways to convey similar meanings. Overall, "guarantee" is a versatile word that adds credibility and trust when used appropriately.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
ensure
Focuses on making certain that something will happen.
promise
A straightforward declaration assuring someone that one will do something.
assure
Implies a firm promise or conviction about something.
secure
Emphasizes making something safe or certain against threats.
warrant
Suggests a formal assurance, often in a commercial or legal context.
pledge
Indicates a solemn or formal promise, often involving commitment.
insure
Primarily related to protecting against financial loss or risk.
vouch for
Represents standing as a guarantor for the behavior or good qualities of another.
certify
Indicates an official confirmation or verification of something.
affirm
Conveys a strong and public declaration of support or belief.
FAQs
How can I use "guarantee" in a sentence?
What are some synonyms for "guarantee"?
Alternatives to "guarantee" include "assure", "warrant", "ensure", and "secure depending on the context".
Is there a difference between "guarantee" and "warranty"?
What does a money-back "guarantee" mean?
A money-back "guarantee" means that if you're not satisfied with a product or service, you can return it within a specified timeframe and receive a full refund.
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
94%
Authority and reliability
4.8/5
Expert rating
Real-world application tested