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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
letter of authorization
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "letter of authorization" is correct and usable in written English.
You can use the phrase to refer to a written document that is used to authorize a person or entity to act on someone else's behalf. For example, "I sent the company a letter of authorization, which allowed my neighbour to pick up the delivery on my behalf."
✓ Grammatically correct
News & Media
Science
Formal & Business
Wiki
Alternative expressions(19)
authorization letter
letter of authority
letter of consent
letter of approval
letter of delegation
official authorization
letter of request
letter of endorsement
letter of recognition
letter of clearance
letter of sacking
letter of notification
letter of eviction
letter of course
letter of protest
letter of resignation
letter of recommendation
letter of reference
facilitation letter
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
13 human-written examples
And they will have to obtain a "letter of authorization," which will allow the F.A.A. to track them.
News & Media
For example, a child alone or with an adult other than a parent or legal guardian must have a notarized letter of authorization in Spanish to fly between the United States and the Dominican Republic.
News & Media
He introduced me to three young Nepali and Bangladeshi workers in a nearby Popeye's and Cinnabon, each of whom had paid a smuggler between three hundred and four hundred dollars to bring them onto the base with a fake letter of authorization.
News & Media
A border crossing by car into Canada often seems no more formal than passing through a toll booth, but Susan Scarlett, a spokeswoman for the Canadian Department of Citizenship and Immigration, says that a parent traveling alone with children should still carry a letter of authorization from the other parent.
News & Media
If someone questions his credentials, Mr. McCollum not only flashes an identity badge (he says he found it) but he produces a letter of authorization on official stationery (he admits to writing it himself, but insists the paper was a gift).
News & Media
A spokesperson for Uber confirmed to TechCrunch that the ride-hailing giant received a letter of authorization from the Pennsylvania Department of Transportation and clarified that the company has not yet resumed self-driving operations.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
45 human-written examples
Grandparents traveling with grandchildren and adults traveling with children who are not theirs must carry letters of authorization from both parents of the children.
News & Media
She set out to retroactively deny Leverich permission to publish, on the ground that Williams' two letters of authorization did not specifically say that Leverich could quote from correspondence and journals.
News & Media
In fact, hackers even seek out old letters of authorization, with scanned signatures, in an attempt to forge new wire transfer requests.
News & Media
A letter of credit is essentially an authorization made by a buyer to his agent (usually a bank) to make payment to a seller.
Encyclopedias
Certificates of authorization are available from the authors upon request.
Science
Expert writing Tips
Best practice
When drafting a "letter of authorization", be specific about the powers granted to the authorized party. Clearly define the scope and limitations of their authority to avoid potential misunderstandings or misuse.
Common error
Avoid using overly broad language in a "letter of authorization". Clearly specify the exact actions the authorized party can take. Otherwise, the letter may be challenged due to ambiguity.
Source & Trust
82%
Authority and reliability
4.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "letter of authorization" functions as a noun phrase, typically acting as the subject or object of a sentence. As Ludwig AI indicates, it denotes a formal document granting permission or authority. Examples show it used in contexts ranging from international travel to medical decisions.
Frequent in
News & Media
30%
Science
25%
Formal & Business
20%
Less common in
Wiki
15%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
The phrase "letter of authorization" is a grammatically sound and relatively common term, as confirmed by Ludwig AI. It functions as a noun phrase indicating a formal document that grants permission or authority to act on someone's behalf. Predominantly used in news, scientific, and formal business contexts, it maintains a professional register. When using this phrase, it's crucial to define the authorization's scope clearly to avoid ambiguity. Related phrases like "authorization letter" and "letter of authority" can be used depending on the specific nuance you want to convey.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
authorization letter
Word order is changed.
letter of authority
Replaces "authorization" with a synonym, "authority".
permission letter
Replaces "authorization" with "permission", emphasizing consent.
letter of consent
Focuses on the agreement aspect of authorization.
clearance letter
Implies an official approval or clearance.
letter of approval
Highlights the act of approving something.
accreditation letter
Suggests formal recognition or certification.
mandate letter
Suggests a formal command or instruction.
letter of delegation
Emphasizes the act of delegating authority.
official authorization
Indicates a formal authorisation process.
FAQs
How to use "letter of authorization" in a sentence?
A "letter of authorization" grants someone the power to act on your behalf. For example, "I provided a "letter of authorization" allowing my lawyer to sign the contract".
What is the purpose of a "letter of authorization"?
The purpose of a "letter of authorization" is to give someone formal permission to perform specific actions on your behalf, often in legal, financial, or business contexts. It serves as documented proof of granted authority.
What should be included in a "letter of authorization"?
A "letter of authorization" should include the names of both the authorizer and the authorized party, a clear description of the authorized actions, the effective date and duration of authorization, and the authorizer's signature.
What can I say instead of "letter of authorization"?
Alternatives to "letter of authorization" include "authorization letter", "letter of authority", or "permission letter", depending on the context.
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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
82%
Authority and reliability
4.4/5
Expert rating
Real-world application tested