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 knowledge about
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a knowledge about" is not correct in standard written English.
The correct expression would typically be "knowledge of" or "knowledge about" without the article "a." Example: "She has a deep knowledge of ancient history."
⚠ May contain grammatical issues
Science
News & Media
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
6 human-written examples
There's a hunger, a thirst and a knowledge about design now".
News & Media
Therefore, a knowledge about the effect of each design factor such as the supply air velocity on the turbulent thermal diffusivity needs to be acquired through a parametric study.
Science
A longitudinal randomized design was used to evaluate the impact of a theoretically based, stand-alone interactive video intervention on 300 urban adolescent girls' (a) knowledge about sexually transmitted diseases (STDs), (b) self-reported sexual risk behavior, and (c) STD acquisition.
Science
"Our research has consistently shown that a knowledge about Islam and Muslims in general is very low in our society," he said.
News & Media
The patient seems to have a knowledge about own health, which cannot be explained by patient's objective health status as it is described with present-day technology [ 31].
Science
For health professionals to access these not only do they need to be able to have easy online access but also a knowledge about databases and how to search, as well as critical appraisal skills to interpret the information.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
Firstly, we formulate an optimal offline transmission scheduling problem with a priori knowledge about CSI.
This method generates probabilistic a priori knowledge about forward-computing the probability of an event occurring.
Science
A little knowledge about the way highways are numbered can go a long way.
Wiki
Its polling shows most people have a limited knowledge about the war and its origins.
News & Media
Worse, they added, most trainers have only a basic knowledge about dolphins.
News & Media
Expert writing Tips
Best practice
Prefer "knowledge of" or "understanding of" for grammatically correct and widely accepted usage. For example: "She has a deep knowledge of ancient history."
Common error
Avoid using the article "a" before "knowledge" when followed by "about". It's more common and grammatically sound to say "knowledge of" or "knowledge about" without the article.
Source & Trust
84%
Authority and reliability
3.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a knowledge about" functions as a noun phrase intended to express possession of information or understanding concerning a particular subject. However, Ludwig AI flags this construction as non-standard.
Frequent in
Science
50%
News & Media
33%
Wiki
17%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, while the phrase "a knowledge about" appears in various sources, it's grammatically non-standard. Ludwig AI indicates that the more accepted forms are "knowledge of" or "knowledge about" (without the article "a"). The phrase aims to convey understanding or information possession across different contexts like Science, News & Media, and Wiki. Alternatives like "understanding of" or "awareness of" offer grammatically sound options. When writing, it's best to avoid using "a" before "knowledge about" for clearer and more widely accepted English.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
knowledge of
Omits the indefinite article "a" and uses the preposition "of" for a more grammatically standard construction.
understanding of
Replaces "knowledge" with "understanding" to emphasize comprehension and uses the preposition "of".
awareness of
Substitutes "knowledge" with "awareness" to highlight consciousness and perception.
familiarity with
Emphasizes acquaintance and experience with a subject.
expertise in
Highlights a high level of skill or specialized knowledge in a particular area.
insight into
Suggests a deeper, more intuitive understanding of a topic.
command of
Implies a comprehensive and authoritative grasp of a subject.
grasp of
Similar to 'understanding of', but can also imply control or mastery.
acquaintance with
Indicates a basic or superficial level of knowledge.
appreciation for
Focuses on recognizing the value and importance of something.
FAQs
What's the correct way to say I have information about a topic?
The correct way is to say you have "knowledge of" or "knowledge about" the topic. For example, "I have "knowledge of" physics" or "I have "knowledge about" physics".
Is it grammatically correct to use "a knowledge about" in a sentence?
While understandable, "a knowledge about" is not standard English. It's better to use ""knowledge of"" or ""knowledge about"" without the article "a".
Can I use "understanding" instead of "knowledge of"?
Yes, you can often use "understanding of" as a substitute for "knowledge of", especially when emphasizing comprehension. For instance, "He has an understanding of the subject matter".
What is the difference between "knowledge of" and "knowledge about"?
"Knowledge of" often implies a deeper, more comprehensive understanding, while ""knowledge about"" can refer to more general information. However, they are often interchangeable.
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
3.8/5
Expert rating
Real-world application tested