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
true fault
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "true fault" is not commonly used in written English and may be confusing without context.
It could be used in discussions about accountability or responsibility, particularly in legal or philosophical contexts. Example: "In the debate about moral responsibility, some argue that a true fault lies in the intentions behind one's actions."
Science
News & Media
Alternative expressions(2)
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
7 human-written examples
Faust is tracing a true fault line in modern consciousness.
News & Media
By the above modeling strategy, uninformative fault effects that do not present time-wise autocorrelations are excluded so that the true fault degradation process can be focused on for online fault prognosis.
Science
The computer program could be used as a tool in education and will also be useful for the calculation of the true fault displacement in geological and engineering works.
Science
An integrated scheme that starts with qualitative fault isolation to narrow down possible fault hypotheses, and then uses a focused quantitative parameter estimation scheme to identify the true fault is developed.
Science
We chose the nodal plane with the smaller misfit angle as the true fault plane.
Science
In the second case, the previous experiments contain most of the outliers because of a true fault by the experimenter.
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
The proposed methods were evaluated using either real measurements combined with Monte-Carlo simulation of GNSS faults (Scenario 1) or employing true GNSS fault in hybrid approach (Scenario 2).
That turned out not to be true; the fault was Diebold's.
News & Media
But the true fertility fault line in Europe — the fissures of which spread outward across the globe — runs between the north and the south.
News & Media
The valley's true human fault line, however, is not race but class: it is evolving rapidly into a two-tier culture of the technologically savvy global elite and the people who service them.
News & Media
Although only a port operation scenario and one example of a true GNSS fault in open sea was considered, we believe the presented results to be general enough and the scheme could be adopted for other applications.
Expert writing Tips
Best practice
Consider using more common synonyms like "actual cause" or "real reason" for better clarity in general writing.
Common error
Avoid using "true fault" in casual conversation or informal writing. It can sound overly formal or even accusatory when simpler terms like "real problem" or "actual mistake" would be more appropriate.
Source & Trust
85%
Authority and reliability
3.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "true fault" functions as a noun phrase where the adjective "true" modifies the noun "fault". It identifies the actual cause or responsibility for something, often distinguishing it from perceived or superficial causes. Ludwig's examples highlight its usage in scientific and news contexts.
Frequent in
Science
57%
News & Media
43%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "true fault" refers to the actual or underlying cause of a problem, often contrasted with superficial reasons. Ludwig indicates the phrase is grammatically acceptable and appears in both scientific and news contexts. Its usage frequency is uncommon, suggesting it's not a ubiquitous phrase, but contextually appropriate in situations requiring precise identification of accountability or causation. Consider using synonyms like "genuine error" or "real mistake" for increased clarity in general writing. It's important to note that depending on the context, it might be perceived as overly formal and less common synonyms might be more appropriate.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
genuine error
Replaces "fault" with "error" emphasizing unintentional mistake.
real mistake
Similar to "genuine error", but carries a slightly less formal tone.
actual culpability
Focuses on the responsibility for wrongdoing.
true responsibility
Directly indicates where the real accountability lies.
veritable defect
Emphasizes the authentic and unquestionable nature of the flaw.
precise failing
Highlights a specific shortcoming or inadequacy.
accurate error
Indicates an error that is correctly identified and defined.
correct flaw
Indicates a flaw that is precisely identified and understood.
fundamental attribution
Focuses on the underlying cause or reason behind something.
root cause
Highlights the most basic reason that sets off a chain of events.
FAQs
What does "true fault" mean?
The phrase "true fault" refers to the real or underlying cause of a problem, error, or failure, often in contrast to something that might be superficially identified as the reason.
What can I say instead of "true fault"?
You can use alternatives like "genuine error", "real mistake", or "actual culpability" depending on the context.
Is "true fault" grammatically correct?
Yes, "true fault" is grammatically correct, but it may sound formal in certain contexts. Ludwig AI indicates it's acceptable but suggests considering the tone and formality of your writing.
How do I use "true fault" in a sentence?
Use "true fault" when you want to emphasize the genuine or underlying reason for something, especially when there might be confusion or disagreement about the cause. For instance: "The "root cause", the "true fault", wasn't a simple oversight but a systemic issue.
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
3.8/5
Expert rating
Real-world application tested