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
deviation has occurred
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "deviation has occurred" is a correct and usable phrase in written English.
It is usually used in the form of a statement to indicate that something has gone off course or has gone wrong in some way. For example, "There has been a deviation from the normal operating procedure; the project will have to be restarted."
✓ Grammatically correct
Science
News & Media
Alternative expressions(19)
error has occurred
a departure has taken place
an anomaly has arisen
a variance has manifested
a divergence has emerged
an irregularity has been detected
something has gone awry
infringement has occurred
amendment has occurred
bias has occurred
drift has occurred
tolerance has occurred
deviation has decreased
trend has occurred
divergence has occurred
spread has occurred
variation has occurred
discrepancy has occurred
error has occured
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
2 human-written examples
When a rule is broken (indicating that a deviation has occurred) an investigation may reveal the underlying special cause.
Science
Despite this absence, a consistent genetic improvement of health status, corresponding to one third of a genetic standard deviation, has occurred in the studied population between 1983 and 2001 for HOOF and PALP, respectively.
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
These deviations, which should have been recovered while still within the safe envelope of operation, were missed primarily because of inadequate indication signals that the deviations have occurred.
Since the players detect a variation of the received signal power, a deviation from the cooperation plan has occurred.
On the other hand, however, deviation from the typical mt genome organization has occurred in many bilateral animals.
Science
To identify whether exon-skipping has occurred in some tissues, we considered four exon-skipping scores that measure the deviations of the residuals across tissues.
Science
Neither has occurred.
News & Media
Habituation has occurred.
Encyclopedias
Re-education has occurred.
News & Media
Perhaps, unnoticed, one has occurred.
News & Media
But the opposite has occurred.
News & Media
Expert writing Tips
Best practice
When using "deviation has occurred", specify the area or process where the deviation took place to provide clarity and context. For example, "A significant deviation has occurred in the project timeline due to unforeseen circumstances".
Common error
Avoid using "deviation has occurred" in isolation without specifying what exactly deviated or the context of the deviation. This can lead to confusion and ambiguity for the reader. Always provide enough information to ensure the meaning is clear.
Source & Trust
81%
Authority and reliability
4.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "deviation has occurred" functions as a declarative statement asserting that a divergence from an expected standard, plan, or norm has taken place. Ludwig confirms its correct usage.
Frequent in
Science
40%
News & Media
30%
Academia
10%
Less common in
Encyclopedias
5%
Formal & Business
5%
Wiki
5%
Ludwig's WRAP-UP
The phrase "deviation has occurred" is a grammatically correct and frequently used expression indicating that something has departed from its intended course. Ludwig AI confirms this. It's commonly found in scientific, news, and academic contexts, serving to objectively report an instance where a standard or expected behavior has not been followed. While versatile, clarity is key; ensure the context and specific nature of the deviation are clear to avoid ambiguity. Related phrases include "a departure has taken place" and "an anomaly has arisen", offering alternative ways to express similar meanings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a departure has taken place
Replaces "deviation" with a more general term for departure, changing the tone slightly.
an anomaly has arisen
Substitutes "deviation" with "anomaly", implying something unusual or unexpected has happened.
a variance has manifested
Replaces "deviation" with "variance" and "occurred" with "manifested", making the phrase more formal.
a divergence has emerged
Uses "divergence" instead of "deviation", suggesting a splitting or moving apart from a norm.
an irregularity has been detected
Focuses on the detection of the deviation, adding a sense of scrutiny.
something has gone awry
Replaces the entire phrase with a more informal and general expression of something going wrong.
the plan has been derailed
Implies that a specific plan or process has been disrupted, differing from a general deviation.
the standard has not been met
Shifts the focus to the failure to meet a specific standard, rather than a deviation from it.
the norm has been breached
Highlights the breaking of a norm or expected behavior, adding a sense of violation.
the procedure was not followed
Emphasizes a failure to adhere to a prescribed procedure, narrowing the scope of the deviation.
FAQs
How can I use "deviation has occurred" in a sentence?
You can use "deviation has occurred" to indicate that something has strayed from its intended course or standard. For example, "A significant "deviation has occurred" in the experimental results, requiring further investigation".
What's a more formal way to say "deviation has occurred"?
For a more formal tone, consider phrases like "a departure has taken place" or "an anomaly has arisen" as alternatives to "deviation has occurred".
What's the difference between "deviation has occurred" and "error has occurred"?
"Deviation has occurred" suggests a departure from a norm or expected path, while "error has occurred" implies a mistake or inaccuracy. A deviation isn't necessarily an error, but an error always represents a deviation from what is correct.
What are some situations where I might use the phrase "deviation has occurred"?
The phrase "deviation has occurred" is often used in scientific reports, project management updates, or quality control assessments to describe instances where something did not go as planned. For example, you might say "a "deviation has occurred" from the original research protocol".
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
81%
Authority and reliability
4.4/5
Expert rating
Real-world application tested