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
this is what
Grammar usage guide and real-world examplesUSAGE SUMMARY
"this is what" is a correct and usable phrase in written English.
You can use it to refer to something that was said or presented previously in the same paragraph or conversation. Example: My professor suggested I read certain books for my course assignment. This is what I will be focusing on for the next few months.
✓ Grammatically correct
News & Media
Science
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
And this is what.
News & Media
This is what we imagine.
News & Media
This is what he said.
News & Media
This is what we're exploring".
News & Media
This is what you are!
News & Media
This is what we're about.
News & Media
This is what Beltran does.
News & Media
This is what is happening.
News & Media
This is what I feel".
News & Media
"This is what he wanted.
News & Media
This is what commenters noticed.
News & Media
Expert writing Tips
Best practice
Use "this is what" to clearly refer back to a previously mentioned idea or action, creating a direct link for the reader.
Common error
Avoid using "this is what" excessively in formal or academic writing; instead, opt for more sophisticated and precise language to maintain a professional tone.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this is what" functions as a demonstrative phrase introducing a clarification, explanation, or summary of a previous statement or situation. As Ludwig AI indicates, it is a common and correct phrase in English.
Frequent in
News & Media
70%
Science
15%
Formal & Business
5%
Less common in
Wiki
5%
Encyclopedias
3%
Social Media
2%
Ludwig's WRAP-UP
In summary, "this is what" is a demonstrative phrase used for clarification or emphasis, as confirmed by Ludwig AI. It's grammatically sound and widely applicable, particularly in news and media contexts. While versatile, it's best to use it judiciously in highly formal writing to maintain a professional tone. Consider alternatives like "that is what" or "this is the reason why" for stylistic variation.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that is what
Changes the demonstrative pronoun from "this" to "that", shifting the focus slightly.
this is the thing
Replaces "what" with "the thing", providing a more concrete feel.
this is the point
Emphasizes that a specific idea or argument is being highlighted.
that's the essence
Uses "that's" instead of "this is" and replaces "what" with "the essence", indicating the fundamental nature of something.
this is the reason why
Adds a causal explanation, showing cause and effect
here's the thing
Uses "here's" instead of "this is", offering a more conversational tone.
that is the case
Replaces "what" with "the case", suggesting a statement of fact.
this signifies
Replaces "is what" with "signifies", formalizing the language.
this implies
Replaces "is what" with "implies", indicating suggestion or inference.
this demonstrates
Replaces "is what" with "demonstrates", showing proof or evidence.
FAQs
How can I use "this is what" in a sentence?
Use "this is what" to refer back to something previously mentioned or described. For example, "The instructions were unclear, but "this is what" I understood from them".
What are some alternatives to "this is what"?
Depending on the context, consider alternatives such as "that is what", "this is the reason why", or "here's the thing" to add variety to your writing.
Is it okay to start a sentence with "this is what"?
Yes, starting a sentence with "this is what" is grammatically correct, especially when you want to emphasize or clarify something. However, avoid overuse to maintain a natural flow.
What's the difference between "this is what" and "that is what"?
"This is what" typically refers to something closer in context or time, while "that is what" usually refers to something more distant or previously discussed.
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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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested