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
information which
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "information which" is correct and usable in written English.
It can be used when introducing a clause that provides additional details or specifies the type of information being referred to. Example: "The report contains information which is crucial for understanding the project's outcomes."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(4)
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
This is priceless information which is free.
Academia
For lack of information which the president gets?
News & Media
Information which puts flesh on such data is quite another.
News & Media
"But professors do provide us with information, which is vital".
News & Media
The information which is currently in circulation is incomplete".
News & Media
Research leads to information, which leads to hearing about openings.
Academia
The only information which is required is title.
Academia
When you have multiple sensors giving conflicting information, which one do you defer to?
News & Media
[This] provides relevant information which helps partners and DCA to adjust our work to improve it".
News & Media
It provides extra detail and information which can help improve their risk scoring".
News & Media
But it is easier to obtain injunctions about information which is claimed to be private.
News & Media
Expert writing Tips
Best practice
Use "information which" to introduce a nonrestrictive clause, providing additional, non-essential details. Ensure the clause is set off with commas.
Common error
Avoid using "that" instead of "which" in nonrestrictive clauses. "Which" is typically used to introduce nonessential information, while "that" is used for essential information.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "information which" introduces a nonrestrictive relative clause, providing additional details about the information being discussed. It is used to add extra context that is not essential to the core meaning of the sentence. As Ludwig AI confirms, this usage is grammatically sound.
Frequent in
News & Media
38%
Academia
30%
Science
20%
Less common in
Formal & Business
7%
Reference
3%
Social Media
2%
Ludwig's WRAP-UP
In summary, "information which" is a grammatically correct and frequently used phrase that introduces nonrestrictive clauses to provide supplementary details. As Ludwig AI confirms, the phrase is perfectly usable in written English. It is most commonly found in news articles, academic papers, and scientific documents. When writing, it's important to differentiate between restrictive and nonrestrictive clauses and use "which" appropriately to enhance clarity. Alternatives like "data that" or simply rephrasing the sentence can sometimes improve conciseness. The most frequent sources are The Guardian, The New York Times and Huffington Post.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
data that
Replaces "information" with "data" and uses "that" instead of "which".
details that
Replaces "information" with "details" and uses "that" instead of "which".
the information that
Adds "the" before information and uses "that" instead of "which".
the data which
Replaces "information" with "data" and adds "the" before data.
specifics that
Replaces "information" with "specifics" and uses "that" instead of "which".
intelligence that
Replaces "information" with "intelligence" and uses "that" instead of "which".
the intelligence which
Replaces "information" with "intelligence" and adds "the" before intelligence.
facts that
Replaces "information" with "facts" and uses "that" instead of "which".
the specifics which
Replaces "information" with "specifics" and adds "the" before specifics.
the facts which
Replaces "information" with "facts" and adds "the" before facts.
FAQs
When should I use "information which" versus "information that"?
"Information which" is best used when introducing a nonrestrictive clause, providing extra but not essential details. "Information that" is used for restrictive clauses, which are essential to the sentence's meaning. For example, "The "information that" is vital must be protected."
What are some alternatives to using "information which" in a sentence?
Depending on the context, you can use alternatives like "data that", "details that", or rephrase the sentence to avoid the need for a relative clause altogether.
Is it grammatically correct to start a sentence with "information which"?
While grammatically possible, starting a sentence with "information which" can sound awkward. It's generally better to restructure the sentence for clarity and flow, or to use a different phrasing.
How can I make my writing sound more concise than using "information which"?
Consider using a more direct phrasing. Instead of "the information which is relevant", try "the relevant information". This often makes the sentence more streamlined and easier to read.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested