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
as classified
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as classified" is correct and usable in written English.
It can be used when referring to information that has been designated as confidential or restricted in access. Example: "The documents were marked as classified, indicating that they contained sensitive information."
✓ Grammatically correct
Science
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
57 human-written examples
Optically thick clouds, as classified by the split window, reasonably correspond to the PR and TMI rainfalls.
Science
Of those, Mr. Comey said, "a very small number" bore markings that identified them as classified.
News & Media
(Clinton has said repeatedly that she didn't send or receive any information that was marked as classified at the time).
News & Media
The law would make it a crime to leak, possess or publish information judged as classified by the government.
News & Media
They argue that she is in the clear because she never disclosed information that was designated as classified.
News & Media
Mrs. Clinton defended herself by saying, "None of the emails sent or received by me had such a header" marking them as classified.
News & Media
Research and write a report on this or another psychiatric disorder, as classified by the Diagnostic and Statistical Manual of Mental Disorders (DSM).
News & Media
These have culminated in the loss of two data-storage devices officially referred to as "classified removable electronic media".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
3 human-written examples
When, an example is considered as classified correctly, and, when, the example is considered to be classified incorrectly.
*As classified by the Collexis search engine.
*As classified by GMC between December 1996 and April 2006.
Science
Expert writing Tips
Best practice
Use "as classified" when you want to indicate that something has been officially or formally categorized according to a specific system or standard.
Common error
Ensure that the system or standard used for classification is clear to the reader. Avoid vagueness by specifying the classifying authority or method.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as classified" functions as a prepositional phrase, often modifying a noun or noun phrase by specifying the system or criteria used for categorization. As Ludwig AI shows, it commonly appears to indicate a recognized or official classification method.
Frequent in
Science
52%
News & Media
35%
Wiki
5%
Less common in
Formal & Business
3%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "as classified" functions primarily to indicate that something has been categorized according to a specific, often formal, system or standard. Ludwig AI indicates that this phrase is grammatically correct and very common, appearing frequently in scientific and news contexts, suggesting a neutral to formal tone. When using "as classified", ensure that the classification system is clearly defined to avoid ambiguity. Alternatives like "as categorized" or "as designated" can be used depending on the specific nuance you wish to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
as categorized
Focuses more on the act of putting something into a category.
as designated
Emphasizes the act of officially assigning a status or role.
as identified
Highlights the act of recognizing or pointing something out.
as defined
Stresses the act of giving a precise meaning or description.
as grouped
Focuses on the act of assembling items into a cluster based on shared attributes.
as sorted
Emphasizes the arrangement of items into a specific order or class.
as labeled
Highlights the act of attaching a tag or marker for classification.
as recognized
Emphasizes the act of acknowledging or accepting something as belonging to a certain class.
as specified
Focuses on the act of stating something explicitly or in detail.
as listed
Emphasizes the act of including something in a directory or inventory.
FAQs
How can I use "as classified" in a sentence?
You can use "as classified" to indicate how something has been categorized according to a particular standard. For example, "The data was analyzed as classified by the national census bureau."
What's the difference between "as classified" and "as categorized"?
While both phrases indicate a grouping, "as classified" often implies a more formal or official system of categorization, while "as categorized" can be used more broadly.
What are some alternatives to "as classified"?
Depending on the context, you can use alternatives such as "as designated", "as identified", or "as defined".
Is it correct to say "classified as" instead of "as classified"?
Yes, "classified as" is a grammatically correct and commonly used alternative. The choice between the two often depends on the desired emphasis and flow of the sentence.
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
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested