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
are commonly understood
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "are commonly understood" is correct and usable in written English.
You can use it when discussing concepts, terms, or ideas that are widely recognized or accepted by a group of people. Example: "The rules of chess are commonly understood by players around the world, making it easier to engage in international competitions."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(20)
are widely recognized
are generally accepted
are well-known
are well-established
are broadly accepted
are widely accepted
it is generally accepted that
it is common knowledge that
are extremely famous
are very famous
are widely known
are highly regarded
are deemed to be commonplace
are commonly found
are highly accepted
are widely approved
are extensively pronounced
are clearly articulated
are prominently featured
are commonly acknowledged
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
22 human-written examples
Industrial ceramics are commonly understood to be all industrially used materials that are inorganic, nonmetallic solids.
Encyclopedias
As I wrote on Thursday, recessions are commonly understood as disruptive rather than destructive to the economy as a whole.
News & Media
And the Times is writing about this, closing the loop.Rather than rely on dictionaries, statute-writers should be as careful as possible to use words in the way that they are commonly understood (especially in quality edited writing).
News & Media
There is disagreement over the distance that the positive effects of clustering actually extend to, however, meaning that the generation of synergetic 'cluster effects' (as they are commonly understood) between firms in Manchester and firms in Newcastle for example could prove difficult.
News & Media
The resulting message, she wrote, was that people who participate in demonstrations or are simply near demonstrators run the risk of arrest, even if they are not marching in roadways or engaging in other activities that are commonly understood to involve the possibility of arrest.
News & Media
Intimate relationships are commonly understood to provide a source of social support within the general population.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
38 human-written examples
That's not a restaurant as it's commonly understood; it's Brigadoon".
News & Media
Since then, the phrase "penguin media" has been commonly understood in my country.
News & Media
They worry that the supply of homes overshot demand by far more than is commonly understood.
News & Media
Yellow, for falls, is commonly understood as a symbol for caution, whether by janitors mopping floors or by traffic engineers.
News & Media
They have not put the lives of tens of millions of Americans under "surveillance" as that word is commonly understood.
News & Media
Expert writing Tips
Best practice
When using "are commonly understood", ensure that the context clearly defines who commonly understands the concept. Specify the group or field for clarity.
Common error
Avoid using "are commonly understood" when the concept is only understood within a specific niche or expert community. Be precise about who shares this common understanding.
Source & Trust
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are commonly understood" functions as a qualifier, indicating that certain concepts or ideas possess a shared and widespread comprehension within a specified group or context. Ludwig examples show it qualifying terms in science, law, and general knowledge.
Frequent in
Science
40%
News & Media
30%
Encyclopedias
10%
Less common in
Formal & Business
5%
Reference
5%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "are commonly understood" serves as a qualifier, signaling that specific ideas or concepts are widely recognized and comprehended, particularly within a defined group or context. Ludwig's analysis reveals its prevalent use in scientific and news-related domains, as well as encyclopedic entries, with a neutral register suitable for diverse communication styles. Common alternative are "are widely recognized", "are generally accepted", or "are well-known". As Ludwig AI confirms, the phrase is grammatically sound and frequently used.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
are generally accepted
Focuses on the acceptance rather than the understanding of a concept.
are widely recognized
Emphasizes the breadth of recognition, rather than the depth of understanding.
are well-known
Highlights the familiarity of the concept.
are broadly perceived
Focuses on perception, which may not always equate to full understanding.
are conventionally interpreted
Emphasizes the standard or traditional interpretation.
are typically construed
Highlights a specific way of understanding or interpreting something.
are popularly conceived
Focuses on how a concept is imagined or believed by the general public.
are routinely understood
Highlights the habitual or regular nature of the understanding.
are frequently appreciated
Focuses on a positive evaluation or understanding.
are easily grasped
Emphasizes the simplicity or ease of understanding.
FAQs
How can I use "are commonly understood" in a sentence?
Use "are commonly understood" to introduce concepts or terms that are generally known or accepted within a particular group or field. For example, "The basic principles of economics "are commonly understood" by business professionals".
What is a good alternative to "are commonly understood"?
Alternatives include "are widely recognized", "are generally accepted", or "are well-known" depending on the specific nuance you want to convey.
Is it better to say "are commonly understood" or "is commonly understood"?
Use "are commonly understood" for plural subjects and "is commonly understood" for singular subjects. For example, "The rules are commonly understood" versus "The concept is commonly understood".
What does it mean when something "is commonly understood"?
It means that the concept, idea, or term is generally known and accepted by a significant portion of people, especially within a specific context or field. It implies a shared base of knowledge.
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
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested