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
subject at length
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "subject at length" is correct and usable in written English.
It can be used when discussing a topic in detail or providing an extensive explanation about a particular subject. Example: "In the report, we will address the subject at length to ensure all aspects are covered thoroughly."
✓ Grammatically correct
News & Media
Wiki
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
5 human-written examples
Likewise, Assemblyman Joseph J. Roberts Jr., the state Democratic chairman, managed to discuss the subject at length this week without ever uttering the dreaded T-word.
News & Media
Both biographers discuss the subject at length, but both conclude (correctly, I believe) that while Orwell never fully transcended the sometimes ugly prejudices of his time and class, he struggled to do so through his entire adult life.
News & Media
Mr. Bush and many in his cabinet, who discussed the subject at length on Tuesday, have been trying to hammer out a proposal on limiting the pollutants that cause global warming.
News & Media
"After researching the subject at length and talking to a lot of people, we decided to do thematic exhibitions with a number of artists in each one," she said.
News & Media
She has, however, discussed the subject at length in her cover feature for Marie Claire magazine, as well as live on Ellen DeGeneres and Jimmy Kimmel's respective chat shows - the latter during which she 'sang' a "special message" for expecting fathers.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
Ask questions, discuss and debate subject matter at length.
Wiki
Worse, he quotes his subjects at length, and every quotation sounds the same, shorn of idiomatic expression.
News & Media
He asks questions and quotes his subjects at length; he doesn't go all hyperbolic about the music or the musicians, but he has a solid grasp of Tweedy's musical intelligence and can make the Wilco sound come alive in words.
News & Media
Mr. Morris, who has thought and written about the subject at considerable length, has no doubts.
News & Media
But he dwelt on the subject at considerable length in a somber speech that made it clear he is worried about the possibility.
News & Media
He has also discussed the subject at some length with his nemesis-turned-ally, John McCain, who represents immigration-obsessed Arizona and is the sponsor of an even more liberal plan than Mr Bush's in the Senate.Mr Bush's problem is that no subject under the sun not even abortion divides the American right quite as viciously as immigration.
News & Media
Expert writing Tips
Best practice
When using "subject at length", ensure that the subsequent discussion genuinely provides a comprehensive and detailed exploration of the topic. Avoid using the phrase if the discussion only touches upon the surface.
Common error
Avoid using "subject at length" as a mere filler or introduction. Make sure your discussion delivers on the promise of a detailed and comprehensive analysis. If you don't, readers may feel misled.
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "subject at length" functions as an adverbial phrase modifying a verb. It indicates the manner or extent to which a particular topic or matter is discussed, analyzed, or treated. As Ludwig AI suggests, it is generally used to signal that the discussion will be thorough and detailed.
Frequent in
News & Media
50%
Wiki
20%
Science
15%
Less common in
Encyclopedias
5%
Formal & Business
5%
Reference
0%
Ludwig's WRAP-UP
In summary, "subject at length" is a grammatically correct phrase used to indicate a comprehensive and detailed discussion of a topic. Ludwig AI validates its correctness and usability in various contexts. While not extremely common, it is primarily found in News & Media and Wiki sources, indicating a neutral to formal register. To avoid misuse, ensure that the subsequent discussion lives up to the promise of thoroughness, as superficial coverage would undermine the phrase's intent. Alternatives such as "discuss the subject extensively" or "delve into the subject deeply" can be used to convey a similar meaning. Remember that overuse of this phrase can result in redundancy. The phrase is considered correct and usable in written English.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
discuss the subject extensively
Emphasizes the thoroughness of the discussion on the topic.
delve into the subject deeply
Highlights the depth of exploration into the subject matter.
expound on the subject
Focuses on a detailed and elaborate explanation of the subject.
elaborate on the topic
Similar to 'expound', but with a slightly broader application.
address the subject comprehensively
Stresses the completeness of the coverage of the subject.
examine the subject in detail
Highlights a close and careful inspection of the topic.
explore the subject thoroughly
Emphasizes the comprehensive nature of the exploration.
treat the subject exhaustively
Indicates a complete and thorough handling of the subject matter.
analyze the subject extensively
Focuses on a detailed analysis of the subject.
go into the subject in depth
Simple and direct way of saying the subject will be discussed with detail.
FAQs
How can I use "subject at length" in a sentence?
You can use "subject at length" to indicate that a topic will be discussed in detail. For instance, "The report addresses the "issue at length", providing a thorough analysis of its causes and effects."
What are some alternatives to saying "subject at length"?
Alternatives include "in detail", "extensively", or "thoroughly". Depending on the context, you might also use phrases like "discuss the subject extensively" or "delve into the subject deeply".
Is it more appropriate to say "subject in length" or "subject at length"?
"Subject at length" is the correct and commonly used phrasing. "Subject in length" is not a standard English expression and should be avoided.
What's the difference between discussing a "subject briefly" and discussing it "subject at length"?
Discussing a "subject briefly" means covering it quickly and superficially, while discussing a "subject at length" implies a thorough, detailed, and comprehensive examination of the topic.
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
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested