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 world in which
Grammar usage guide and real-world examplesUSAGE SUMMARY
'a world in which' is correct and usable in written English.
You can use it when introducing the context of a situation or a description. For example, "In a world in which technology is advancing at lightning speed, it can be hard to keep up."
✓ Grammatically correct
News & Media
Academia
Alternative expressions(20)
in a setting where
in a scenario where
in a context where
in an environment where
under circumstances where
in a situation where
in an era when
in a time when
a nation in which
a globe in which
a peace in which
a history in which
a event in which
a cup in which
a third in which
a universe in which
a world in whose
a disease in which
a murder in which
a stadium in which
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
A world in which aliens live.
News & Media
We live in a world in which everything is design".
It is a world in which subtlety is reviled.
News & Media
They are used to a world in which money talks.
News & Media
This is a world in which brutality is a constant.
News & Media
Imagine a world in which information isn't free.
News & Media
"I came into a world in which I saw discrimination.
News & Media
We live in a world in which data convey authority.
News & Media
"I love a world in which that's possible".
News & Media
This is a world in which all problems get solved.
News & Media
A world in which I was effectively alone.
News & Media
Expert writing Tips
Best practice
Use "a world in which" to introduce hypothetical or alternative scenarios, allowing your audience to consider different possibilities or outcomes. Ensure that the clauses following "a world in which" clearly define the characteristics or conditions of that world.
Common error
While "a world in which" is useful, overuse can make your writing sound repetitive. Vary your sentence structure by using alternatives like "in a scenario where" or "in a context where" to maintain reader engagement.
Source & Trust
91%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a world in which" functions as a relative clause introducer, setting the stage for a hypothetical or conditional scenario. As Ludwig AI confirms, it’s grammatically sound and widely applicable. It introduces a dependent clause that provides context or specifies characteristics of the "world" being discussed.
Frequent in
News & Media
51%
Academia
46%
Science
3%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "a world in which" is a versatile and grammatically correct phrase used to introduce hypothetical scenarios or conditions. As Ludwig AI confirms, this phrase is suitable for both formal and informal contexts, though primarily found in news media and academic writing. When using this phrase, ensure that the subsequent clause clearly defines the characteristics of the described world. Be mindful of overuse by incorporating alternative phrases like "in a setting where" or "in a scenario where" for variety. Considering its prevalent usage and adaptable nature, mastering the application of "a world in which" is invaluable for effective communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
in a setting where
Replaces "world" with "setting" to specify a particular environment or context.
in a scenario where
Emphasizes a hypothetical situation or possible future.
in a context where
Highlights the circumstances or conditions surrounding an event or situation.
in an environment where
Focuses on the surroundings and conditions influencing events.
under circumstances where
Specifies particular conditions or situations.
in a situation where
Highlights a specific set of conditions or events.
in a system where
Focuses on the structure and organization within which something occurs.
in an era when
Indicates a specific period or time in which something happens.
in a time when
Similar to "in an era when" but can refer to a shorter or less defined period.
in a reality where
Emphasizes a hypothetical or alternative state of existence.
FAQs
How can I use "a world in which" in a sentence?
Use "a world in which" to introduce a hypothetical scenario or condition. For example, "A world in which everyone has access to clean water is our ultimate goal."
What phrases are similar to "a world in which"?
Alternatives include phrases like "in a setting where", "in a scenario where", or "in a context where", depending on the specific nuance you want to convey.
Is it better to use "in which" or "where" after "a world"?
While both "in which" and "where" can be used, "in which" is generally more formal and precise, especially when referring to abstract conditions. "Where" might be suitable if referring to a physical location, though "in which" remains acceptable.
Can "a world in which" be used to describe a real situation?
Yes, it can, particularly when emphasizing the specific conditions or characteristics of that real situation. However, it's most commonly used for hypothetical or future scenarios.
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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
91%
Authority and reliability
4.5/5
Expert rating
Real-world application tested