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
a unique factor
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a unique factor" is correct and usable in written English.
It can be used when referring to a specific element or characteristic that is distinct or one-of-a-kind in a particular context. Example: "The study identified a unique factor that contributed to the success of the project, setting it apart from others."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(4)
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
20 human-written examples
But when it comes to sleep, "there is a unique factor of race we're still trying to understand".
News & Media
They are obviously going to analyse everything that has gone and try to understand whether it's a unique factor from here with the speed, the kerbs and all the rest of it or whether it's another issue.
News & Media
For example, police commanders here attribute the spike in violence in large part to a unique factor: a flood of black-market opiates stolen from 27 pharmacies during looting in April, enough for 175,000 doses now illegally available for sale.
News & Media
Consequently, the probability of becoming a cluster-head is a unique factor in determining the average energy consumed in a network.
Thus, the CTCU framework allows the method wording effect to be removed from the construct by not allowing the wording effect to be examined as a unique factor (Distefano and Motl 2009).
The dung, which is an important and a unique factor for the earthworm maturation and for the production of cocoons and hatchling from the cocoons (Garg et al.2005), increases the growth and reproduction of earthworm by the different agrowastes in the animal dung with different ratios (Suthar2007 2012).
Human-verified similar examples from authoritative sources
Similar Expressions
40 human-written examples
Consequently, we constructed and characterized an array consisting of 99 strains, each overexpressing a unique transcription factor gene.
Science
These findings suggest that loss of PTEN or genes near it on chromosome 10q may be a key and unique factor associated with progression of IDHmut tumors to grade IV.
The last shall be first – if things fall into place and a few unique factors are thrown in.
News & Media
But there are a few unique factors in this particular equation.
News & Media
TFII-I is a unique multifunctional factor that selectively regulates gene expression when activated by a variety of extracellular signals and can function both as a basal transcriptional factor and as an activator (Roy, 2012).
Science
Expert writing Tips
Best practice
When using "a unique factor", ensure that the context clearly demonstrates the element's distinctiveness. Avoid overusing the phrase; opt for more specific descriptions when possible to enhance clarity.
Common error
Avoid using "a unique factor" when the element is simply uncommon but not truly one-of-a-kind. Assess whether the factor genuinely distinguishes the subject from all others in its category to maintain credibility.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a unique factor" functions as a noun phrase, typically serving as a subject complement or object in a sentence. It identifies a particular element or attribute that distinguishes something from others. As confirmed by Ludwig, it is grammatically correct.
Frequent in
Science
47%
News & Media
27%
Formal & Business
8%
Less common in
Wiki
6%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "a unique factor" is a grammatically sound phrase used to emphasize the distinctiveness of a particular element. As noted by Ludwig, it is correct and suitable for written English. It appears most frequently in scientific and news contexts, suggesting a neutral to formal register. When employing this phrase, ensure the identified factor genuinely stands out. While alternatives like "a distinguishing aspect" or "a singular element" exist, "a unique factor" remains a clear and effective way to highlight individuality. Avoiding redundancy, such as "very unique", ensures impactful and precise writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a distinguishing aspect
Focuses on the aspect that sets something apart.
a singular element
Emphasizes the element's individuality.
an exclusive attribute
Highlights the attribute being possessed solely by something.
a one-of-a-kind feature
Stresses the feature's rarity and distinctiveness.
a peculiar characteristic
Implies an unusual or distinctive quality.
an unmatched trait
Highlights the trait being unparalleled.
a special component
Emphasizes the component's particular importance or distinction.
a notable feature
Focuses on the feature being worth paying attention to.
a rare characteristic
Highlights the characteristic's infrequency.
an unprecedented element
Emphasizes that the element is novel and has not occurred before.
FAQs
How can I use "a unique factor" in a sentence?
Use "a unique factor" to highlight a specific element or characteristic that is distinct or one-of-a-kind within a given context. For example, "The study identified a unique factor that contributed to the project's success."
What can I say instead of "a unique factor"?
You can use alternatives like "a distinguishing aspect", "a singular element", or "an exclusive attribute" depending on the context.
Is it redundant to say "very unique factor"?
Yes, it is redundant. "Unique" already means one-of-a-kind, so adding "very" is unnecessary. Simply use "a unique factor".
What's the difference between "a key factor" and "a unique factor"?
"A key factor" refers to an important element, while "a unique factor" indicates an element that is distinctly different from others. A factor can be key without being unique, and vice versa.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested