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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
an issue which
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "an issue which" is correct and usable in written English.
It can be used when introducing a specific problem or topic that requires discussion or resolution. Example: "The report highlighted an issue which needs immediate attention from the management team."
✓ Grammatically correct
News & Media
Science
Alternative expressions(7)
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
"I think it's an issue which is finished," he said.
News & Media
This is an issue which affects many inner-London schools.
News & Media
This is an issue which has been rumbling along for almost a decade.
News & Media
"We're talking about an issue which really clears up the historical record," Leigh said.
News & Media
Debt was an issue which became dominant when my business slowed.
News & Media
It's an issue which is easy to blow up beyond its actual extent.
News & Media
This is an issue which should be solved now - not in August - not after an election".
News & Media
Grammar schools, on the other hand, are an issue which really does divide them.
News & Media
Bush says simply that people should "butt out" of an issue which only concerns South Carolinians.
News & Media
This is an issue which neither side of politics has been willing to address honestly.
News & Media
Fifth comes an issue which hasn't been discussed enough, and that's lobbying.
News & Media
Expert writing Tips
Best practice
Consider replacing "an issue which" with simpler alternatives like "a problem that" or "a topic that" for more concise writing, especially in informal contexts.
Common error
Avoid using "an issue which" in simple sentences where a more direct construction would suffice. For example, instead of "This is an issue which is important", write "This issue is important".
Source & Trust
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "an issue which" functions as a relative clause, introducing additional information about a previously mentioned issue. Ludwig shows its use in adding detail or explanation to a topic.
Frequent in
News & Media
42%
Science
37%
Formal & Business
10%
Less common in
Wiki
4%
Encyclopedias
4%
Academia
3%
Ludwig's WRAP-UP
In summary, the phrase "an issue which" is a common and grammatically sound way to introduce a relative clause that provides further information about a topic. As Ludwig AI confirms, this phrase is widely used in news, science, and formal business settings. While acceptable, it can sometimes be replaced with more concise alternatives like "a problem that" or "a topic that", depending on the context. Remember to use this phrase when you need to elaborate on an issue, ensuring clarity and focus in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a problem that
Replaces "issue" with "problem" and "which" with "that", offering a more direct synonym.
a matter that
Substitutes "issue" with "matter" and "which" with "that", providing a slightly more formal tone.
a topic that
Replaces "issue" with "topic" and "which" with "that", focusing on the subject of discussion.
a concern that
Substitutes "issue" with "concern" and "which" with "that", highlighting a point of worry or interest.
something that
Replaces "an issue" with the more general "something", broadening the scope of reference.
a point that
Substitutes "issue" with "point" and "which" with "that", emphasizing a specific detail or argument.
a subject that
Replaces "issue" with "subject" and "which" with "that", focusing on the area of study or discussion.
an area that
Replaces "issue" with "area" and "which" with "that", highlighting a specific field or domain.
a question that
Substitutes "issue" with "question" and "which" with "that", focusing on a matter needing resolution.
a challenge that
Replaces "issue" with "challenge" and "which" with "that", highlighting a difficulty to be overcome.
FAQs
How can I use "an issue which" in a sentence?
Use "an issue which" to introduce a problem or topic that you will further describe or discuss. For example: "Climate change is "an issue which" requires global cooperation".
What can I say instead of "an issue which"?
You can use alternatives like "a problem that", "a matter that", or "a concern that" depending on the specific nuance you want to convey. Each alternative slightly shifts the focus of the statement.
Which is correct, "an issue which" or "an issue that"?
Both "an issue which" and "an issue that" are grammatically correct. "Which" is generally used for nonrestrictive clauses, while "that" is used for restrictive clauses. However, in modern usage, "that" is often preferred in most contexts because it is more concise.
What's the difference between "an issue which" and "a problem that"?
While similar, ""an issue which"" is a more general term, while "a problem that" specifically implies a difficulty or challenge. Choose the phrase that best reflects the nature of the subject you are discussing.
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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
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested