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
such an idea
Grammar usage guide and real-world examplesUSAGE SUMMARY
'such an idea' is a correct and usable part of a sentence in written English.
You can use it to refer to a particular idea in a context where that idea is already understood. For example, "It is difficult to put into words the significance of such an idea."
✓ Grammatically correct
News & Media
Science
Alternative expressions(5)
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
58 human-written examples
No Khan could understand such an idea.
News & Media
Or is such an idea relativistic?
Such an idea is not entirely new.
News & Media
Where would she get such an idea?
News & Media
And such an idea is needed.
News & Media
Such an idea is no longer fantasy.
News & Media
The devil take such an idea.
News & Media
How might such an idea take root?
News & Media
Security sources and analysts dismissed such an idea as unfeasible.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
Where did he get such an idea?
News & Media
Such an idea is clearly related to just war theory.
Science
Expert writing Tips
Best practice
Use "such an idea" to refer back to an idea that has already been clearly stated or is easily understood from the context, ensuring smooth flow and avoiding repetition.
Common error
Avoid using "such an idea" when the idea you're referring to is vague or hasn't been explicitly mentioned. This can confuse readers and disrupt the clarity of your writing. Always ensure there's a clear antecedent for "such an idea".
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "such an idea" functions as a determiner phrase, specifically referencing a previously mentioned or understood concept. As Ludwig AI suggests, it provides a convenient way to refer back to an idea, promoting clarity and conciseness in writing.
Frequent in
News & Media
72%
Science
21%
Formal & Business
7%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "such an idea" is a grammatically correct and frequently employed phrase in English, as confirmed by Ludwig. It's primarily used to refer back to a previously mentioned or understood concept, making it essential for maintaining clarity and conciseness in writing. As shown by Ludwig, it appears frequently in News & Media and Science contexts. When using "such an idea", ensure there is a clear antecedent to avoid confusing the reader. By using the alternative phrases such as "that concept", you can add variety to your writing. This analysis provides valuable insights into the proper usage and context of the phrase.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that concept
More general and applicable to theoretical constructs.
that notion
Similar to "concept" but often implies a less concrete or more speculative idea.
that kind of thinking
Refers to a particular style or method of thought, rather than the idea itself.
that line of reasoning
Highlights the process of thought leading to an idea, not the idea itself.
that proposal
Implies a suggestion put forward for consideration or action.
that proposition
A statement or assertion that expresses a judgment or opinion.
that belief
Highlights the conviction associated with an idea.
that perspective
Focuses on the viewpoint or way of regarding something.
that hypothesis
More suitable in scientific or exploratory contexts.
that assumption
Suggests an idea accepted as true or certain to happen, without proof.
FAQs
How can I use "such an idea" in a sentence?
Use "such an idea" to refer to a concept previously mentioned or easily inferred from the context. For instance, "The proposal was met with skepticism. Many questioned the feasibility of "such an idea"."
What are some alternatives to "such an idea"?
Depending on the context, you can use phrases like "that concept", "that notion", or "that line of reasoning" as alternatives to "such an idea".
Is it grammatically correct to use "such an idea"?
Yes, it is grammatically correct. The phrase is commonly used to refer to a previously mentioned concept, as confirmed by Ludwig.
What's the difference between "such an idea" and "this idea"?
"Such an idea" typically refers back to an idea already discussed, while "this idea" can introduce a new idea or refer to one that's immediately present. Both are grammatically correct, but their usage depends on the context.
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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