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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
subject of conjecture
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "subject of conjecture" is correct and usable in written English.
It can be used when discussing a topic or idea that is open to speculation or uncertainty. Example: "The origins of the ancient artifact remain a subject of conjecture among historians."
✓ Grammatically correct
News & Media
Encyclopedias
Science
Wiki
Alternative expressions(19)
matter of speculation
topic of debate
area of uncertainty
matter of fact
topic of speculation
matter of debate
open to interpretation
up for discussion
under consideration
an educated guess
subject of speculation
subject of wrath
subject of drilling
subject of controversy
subject of race
subject of won
subject of drama
subject of is
subject of audience
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
10 human-written examples
The specific motive in the crime was a subject of conjecture.
News & Media
Mr Berlusconi's relationship with Sicily's Cosa Nostra has long been the subject of conjecture.
News & Media
However he noted that the number, like the many that had come before it, was the subject of conjecture.
News & Media
The size of the Aga Khan's personal fortune has been the subject of conjecture, especially in the British press, where he appears frequently.
News & Media
Which of the two they favour has long been a subject of conjecture, but clues lie in Nick Clegg's first year as their leader.
News & Media
Its defence budget is thought to be expanding by around 12% a year, though its real size is the subject of conjecture.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
46 human-written examples
Wasserstein's secrecy became, posthumously, the subject of public conjecture.
News & Media
Both these deaths, especially the latter, are now the subject of renewed conjecture.
News & Media
The cause of Caravaggio's death has been the subject of much conjecture.
News & Media
The athlete's future on the track has been the subject of much conjecture throughout his lengthy trial and sentencing.
News & Media
DreamWorks Animation's distribution deal with Paramount Pictures has also been the subject of recent conjecture in Hollywood.
News & Media
Expert writing Tips
Best practice
When using "subject of conjecture", ensure that the context clearly indicates an element of uncertainty or speculation. It's best used when definitive information is lacking and multiple interpretations are possible.
Common error
Avoid using "subject of conjecture" when the information is readily available or confirmed. This phrase is only appropriate when there is genuine uncertainty or a lack of concrete evidence.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "subject of conjecture" functions as a noun phrase, typically acting as a complement or object within a sentence. It identifies a topic or issue that is characterized by uncertainty and open to interpretation. As seen in Ludwig, this usage is common in various contexts.
Frequent in
News & Media
60%
Science
18%
Wiki
10%
Less common in
Encyclopedias
7%
Formal & Business
5%
Reference
0%
Ludwig's WRAP-UP
In summary, "subject of conjecture" is a versatile phrase used to denote uncertainty and invite speculation. Ludwig confirms its grammatical correctness and common usage across various domains, particularly in news, science, and encyclopedic contexts. While related alternatives such as "matter of speculation" and "topic of debate" offer similar meanings, "subject of conjecture" maintains a neutral to formal tone, suitable for analytical discussions. When using this phrase, ensure it accurately reflects a genuine lack of definitive information and avoid misusing it when facts are readily available.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
matter of speculation
Replaces "subject" with "matter" and "conjecture" with "speculation", both conveying uncertainty.
topic of speculation
Substitutes "subject" with "topic", keeping the core meaning of speculative discussion.
matter of debate
Emphasizes the aspect of discussion and differing opinions rather than pure speculation.
topic of debate
Similar to "matter of debate" but replacing "matter" with "topic".
area of uncertainty
Focuses on the lack of definitive knowledge or clarity surrounding a particular subject.
source of speculation
Highlights the origin from which speculative thoughts arise.
open to interpretation
Shifts the focus to the multiple possible understandings rather than explicit speculation.
up for discussion
Indicates that a topic is available and suitable for dialogue
under consideration
Suggests a formal review or evaluation, often implying some uncertainty.
an educated guess
Speculation stemming from informed sources
FAQs
How can I use "subject of conjecture" in a sentence?
You can use "subject of conjecture" to indicate that something is uncertain or open to interpretation. For example, "The specific motive in the crime was a "subject of conjecture"."
What phrases are similar to "subject of conjecture"?
Similar phrases include "matter of speculation", "topic of debate", or "area of uncertainty".
Is it appropriate to use "subject of conjecture" in formal writing?
Yes, "subject of conjecture" is appropriate in formal writing, especially when discussing topics where definitive answers are not available.
What's the difference between "subject of conjecture" and "matter of fact"?
"Subject of conjecture" indicates uncertainty and speculation, while "matter of fact" refers to something that is known and undisputed.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested