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
which is understood
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "which is understood" is correct and usable in written English.
It can be used to clarify or specify something that is commonly accepted or recognized without needing further explanation. Example: "The term 'sustainability' refers to practices that promote environmental health, which is understood to be essential for future generations."
✓ Grammatically correct
News & Media
Science
Encyclopedias
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
60 human-written examples
"There isn't a domain of conversation in culture which is understood by IBM or anybody else.
News & Media
He was chosen for this job because he writes & speaks the classic Arabic, which is understood by all his race.
News & Media
We proclaim a new doctrine of pre-emption which is understood by few and feared by many.
News & Media
Use lime formulations with an elevated pH, such as Hempcrete, which is understood to inhibit biological degradation.
News & Media
This exhibition is not revolutionary in its interpretation of the war, which is understood by many scholars in similar terms.
News & Media
Wallace, who has edited the Mirror since 2004, rejected an offer which is understood to have come from the New York Daily News owner, Mort Zuckerman.
News & Media
He says the college, which is understood to be considering applying for university status, would gain "absolutely nothing" by pushing ahead with its original plans.
News & Media
Taken together, these cases fall under the legal term "universal jurisdiction," which is understood to cover the worst of offenses, which rise to the level of international crimes.
News & Media
But the BBC is not an arm of the Orwellian state; it is a public corporation committed to fairness and objectivity which is understood worldwide.
News & Media
The BBC condemned the decision, which is understood to have been applied to other foreign news broadcasters airing "anti-Pakistan" content as well.
News & Media
The suffering most often deemed worthy of representation is that which is understood to be the product of wrath, divine or human.
News & Media
Expert writing Tips
Best practice
Consider replacing "which is understood" with a more concise alternative like "as is known" or "obviously" if the understanding is truly universal and requires no further explanation.
Common error
Avoid using "which is understood" too frequently in formal or academic writing. Over-reliance on this phrase can make your writing sound repetitive. Opt for stronger verbs or more specific descriptions to convey understanding more effectively.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which is understood" functions as a relative clause, providing additional information about a noun or concept. It indicates that something is known or comprehended by a certain group or within a particular context. Ludwig shows many examples where it clarifies the extent of knowledge about a topic.
Frequent in
News & Media
71%
Science
20%
Encyclopedias
5%
Less common in
Formal & Business
2%
Social Media
1%
Reference
1%
Ludwig's WRAP-UP
In summary, "which is understood" is a grammatically sound and frequently used phrase that serves to indicate shared knowledge or common understanding. As confirmed by Ludwig, it appears most often in news and scientific contexts. While the phrase is generally acceptable, writers should be mindful of potential overuse and consider more concise or formal alternatives when appropriate. Pay attention to the audience of the subject to ensure that the context clearly indicates who is doing the understanding. In short, think of "which is understood" as a useful tool to indicate common ground, but use it wisely to maintain clarity and precision.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that is known
Replaces 'understood' with 'known', emphasizing widespread awareness.
that is comprehended
Substitutes 'understood' with 'comprehended', focusing on intellectual grasp.
which is recognized
Changes 'understood' to 'recognized', highlighting acknowledgement or acceptance.
that is generally accepted
Replaces the entire phrase with a longer but more explicit expression of common agreement.
which is acknowledged
Similar to 'recognized', but can imply a more formal or official acceptance.
that is common knowledge
Replaces the phrase with a direct statement of information being widely known.
which is well-established
Emphasizes that something is not just understood, but firmly and securely known.
that is clear
Replaces the original phrase with a shorter statement of the subject being unambiguous.
as is known
Shortened version highlighting the knowledge itself.
as is appreciated
Shifts the focus towards the appreciation of something, as opposed to understanding.
FAQs
How can I rephrase "which is understood" to sound more formal?
To achieve a more formal tone, consider using phrases such as "which is recognized", "which is acknowledged", or "which is well-established" depending on the specific nuance you want to convey. Each of these alternatives, like "which is recognized", implies a degree of formal acceptance or agreement.
What are some concise alternatives to "which is understood"?
For brevity, you can use phrases like "as is known", "obviously", or simply omit the phrase if the understanding is already clear from the context. Using "as is known" can be a good replacement in several contexts.
When is it appropriate to use "which is understood" in writing?
"Which is understood" is appropriate when you want to emphasize that a concept or idea is generally accepted or comprehended by a particular audience. However, be mindful of potential ambiguity and ensure the context clearly indicates who is doing the understanding.
Is "that is understood" grammatically different from "which is understood"?
While both phrases are grammatically correct, "which is understood" is typically used in nonrestrictive clauses (adding extra information), while "that is understood" can be used in restrictive clauses (essential to the meaning of the sentence). The choice depends on whether the information is essential or additional.
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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
4.5/5
Expert rating
Real-world application tested