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 class of one
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a class of one" is correct and usable in written English.
It can be used to describe a unique individual or entity that stands alone in a particular category or classification. Example: "In the world of innovation, she is truly a class of one, unmatched by any competitor."
✓ Grammatically correct
News & Media
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
19 human-written examples
Smaller classes are held in the Toris' large apartment in the city's university section, as was the case when I showed up on a late October night for a class of one.
News & Media
DR. TYSON -- With a class of one?
News & Media
Auden delivered his lines from a per spective unmatched, a member of a class of one.
News & Media
He attended a one-room school, most years in a class of one.
News & Media
This paper presents a backstepping-based adaptive control designed for a class of one degree-of-freedom uncertain non-linear systems.
So to Van Gaal, whose career makes a fairly good case – according to Louis van Gaal at least – for existing in a class of one.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
41 human-written examples
In addition, the court rejected a class-of-one equal protection claim and a claim that the ordinance violated the Due Process clause based on the void-for-vagueness doctrine.
Academia
In this paper, we propose a new Newton-type method for solving the nonlinear complementarity problem (NCP) based on a class of one-parametric NCP-functions, where an approximate Newton direction can be obtained by solving a modified Newton equation in each iteration.
We focus on the purifiability of a class of one-period memory mixed strategy equilibria used by Ely and Valimaki (2002) in their study of the repeated prisoners' dilemma with private monitoring.
Academia
A class of one-way isothermal mass transfer processes is investigated in this paper.
Science
As a class of one-sided two-party computation, unconditionally secure symmetrically private information retrieval (SPIR) is impossible.
Expert writing Tips
Best practice
Use "a class of one" to describe someone or something that is distinctly superior or unique in their field. For example, "Her artistic talent places her in a class of one."
Common error
Avoid using "a class of one" in everyday conversation. This phrase is best suited for formal writing or when emphasizing a significant degree of uniqueness or excellence.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a class of one" functions as a descriptive phrase, typically used to emphasize the unparalleled nature of an individual, object, or entity. Ludwig AI indicates the phrase is grammatically correct and usable in written English.
Frequent in
News & Media
50%
Science
40%
Academia
10%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "a class of one" is a phrase used to describe something uniquely exceptional, often implying a level of superiority that sets it apart. According to Ludwig AI, the phrase is grammatically sound and appropriate for use in written English, particularly in contexts where emphasizing distinctiveness is key. It appears most frequently in news and media, scientific and academic sources. The phrase's versatility allows it to be employed across various registers, provided the context warrants emphasizing unparalleled qualities.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
one of a kind
Focuses on the uniqueness of the subject.
unique individual
Highlights the distinctiveness of a person.
peerless entity
Emphasizes the unmatched quality of something.
unrivaled example
Stresses the lack of competition or equal.
incomparable case
Highlights the difficulty or impossibility of comparing it to others.
without equal
Directly states the lack of anything comparable.
beyond compare
Similar to "without equal", but with a slightly more figurative tone.
nonpareil
A more formal and less common way to express uniqueness.
matchless
Highlights that something cannot be equaled or rivaled.
exceptional instance
Focuses on something being an unusual and excellent example.
FAQs
How can I use "a class of one" in a sentence?
Use "a class of one" to describe someone or something that is so unique and exceptional that it stands apart from others. For example: "As a military writer, Caesar is in "a class of one"."
What can I say instead of "a class of one"?
You can use alternatives like "one of a kind", "unique individual", or "peerless entity" depending on the context.
Is it better to use "unique" or "a class of one"?
"Unique" simply means being the only one of its kind. "A class of one" implies not only uniqueness but also superiority or exceptional quality, so choose the phrase that best fits the intended meaning.
Can "a class of one" be used to describe a group?
While "a class of one" typically refers to an individual or entity, it can be used metaphorically to describe a group that is so distinct and exceptional that it effectively forms its own category.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested