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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
the idea that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "the idea that" is a perfectly correct and usable phrase in written English.
It can be used to introduce a clause which follows, which explains the idea that was previously mentioned. For example: The mayor suggested that we introduce a new recycling program; the idea that this would help reduce the city's waste was widespread.
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(18)
the concept that
the notion that
the belief that
the fact that
the theory that
the assumption that
the understanding that
the principle that
the submission that
the judgement that
the theme that
the proposition that
the attitude that
the reflection that
the premise that
the thinking that
the thesis that
the reasoning that
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
That's also the idea that drives me.
News & Media
The idea that C.T.E.
News & Media
"The idea that the D.O.E.
News & Media
"The idea that the N.S.U.
News & Media
"The idea that Prop.
The idea that the I.M.F.
News & Media
The idea that Prince – Prince!
News & Media
And the idea that you might strike.
Academia
The idea that Sherpas don't like Westerners?
News & Media
The Idea That Rules the World.
News & Media
The idea that it was live.
News & Media
Expert writing Tips
Best practice
When using "the idea that", ensure that the following clause clearly and concisely articulates the idea you are introducing. Avoid ambiguity or vagueness.
Common error
Avoid using "the idea that" when the idea itself is unclear or poorly defined. Ensure that the statement following "the idea that" provides a clear and specific explanation of the concept being discussed.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "the idea that" serves as a discourse marker, introducing a proposition, concept, or belief. It sets the stage for a subsequent explanation or discussion of the mentioned idea. As demonstrated by Ludwig, it's commonly used across various contexts.
Frequent in
News & Media
34%
Academia
32%
Science
31%
Less common in
Formal & Business
3%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "the idea that" is a versatile and frequently used phrase that serves to introduce concepts, theories, or beliefs across a wide range of contexts. As confirmed by Ludwig, it is grammatically correct and widely accepted in both formal and informal writing. This phrase is particularly common in news media, academic discourse, and scientific publications. When using "the idea that", ensure that the subsequent clause provides a clear and specific articulation of the concept you are introducing. Consider using related phrases like "the concept that" or "the notion that" for nuanced expression.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
the notion that
Replaces "idea" with "notion", suggesting a slightly more abstract or speculative concept.
the belief that
Focuses on the aspect of conviction or faith in the concept.
the concept that
Highlights the theoretical or abstract nature of the idea.
the theory that
Suggests a more structured or scientific framework for the idea.
the assumption that
Implies that the idea is taken for granted or used as a starting point.
the understanding that
Emphasizes a shared or common comprehension of the idea.
the viewpoint that
Highlights a particular perspective or stance regarding the issue.
the perspective that
Similar to 'viewpoint', but may suggest a broader or more comprehensive outlook.
the principle that
Indicates a fundamental rule or basis for the idea.
the conviction that
Highlights the strength and depth of belief in the idea.
FAQs
How can I use "the idea that" in a sentence?
You can use "the idea that" to introduce a concept, theory, or belief. For example, "The idea that hard work leads to success is a common theme in many cultures."
What phrases are similar to "the idea that"?
Alternatives include "the concept that", "the notion that", or "the belief that", which can add nuance depending on the specific context.
Is "the idea that" formal or informal?
"The idea that" is suitable for both formal and informal writing. Its versatility allows it to be used in various contexts, from academic papers to casual discussions.
How does "the idea that" differ from "the fact that"?
"The idea that" introduces a concept or proposition, while "the fact that" introduces something known to be true. Use "the idea that" when presenting a theory or concept, and "the fact that" when presenting established information.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested