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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
that is where
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that is where" is a perfectly grammatical phrase used in written English.
It is usually used as a way of connecting two ideas, the first idea being a description of a particular place, and the second idea being the place itself. For example, you could say, "My grandparents live in a small town in Connecticut - that is where I spent my childhood summers."
✓ Grammatically correct
News & Media
Wiki
Alternative expressions(20)
that is required
it happened then
that is well
it is during that time that
that is however
it is then however
at that juncture
it fails then when
it is then during
it is afterward when
at that point
it is consequently when
thereafter
it is later when
it is then why
then
subsequently
it is then after
only then
it is there when
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 is where she died.
News & Media
That is where we're wrong".
News & Media
That is where I'm going.
News & Media
That is where he finished.
News & Media
That is where we differ.
News & Media
That is where things ended.
News & Media
"That is where you are".
News & Media
"That is where people get sidetracked.
News & Media
That is where it gets tricky.
News & Media
That is where Beatport comes in.
News & Media
That is where the trouble starts.
News & Media
Expert writing Tips
Best practice
Use "that is where" to smoothly transition between describing a place and elaborating on its significance or the events that occur there. It's useful for providing context and creating a clear connection for your reader.
Common error
Avoid using "that is where" when referring to abstract concepts, times, or conditions. "Where" should typically denote a physical location. Instead use "that is when" or "that is how" for time or process references, respectively.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
That is where" functions as an adverbial phrase that modifies a verb by specifying a location. It typically introduces a clause indicating the place where something happens or exists. As Ludwig AI confirms, this construction is grammatically correct and commonly used.
Frequent in
News & Media
88%
Wiki
7%
Formal & Business
2%
Less common in
Science
1%
Academia
1%
Reference
1%
Ludwig's WRAP-UP
In summary, "that is where" is a versatile phrase used to pinpoint locations, often connecting them to relevant events or meanings. Grammatically sound and very common in news, media, and general writing, it effectively bridges descriptions and significance. As Ludwig AI confirms, the phrase is grammatically correct. Remember to reserve its use for actual places, avoiding abstract contexts to maintain clarity and precision in your writing. While the usage of "that is where" is grammatically correct, consider the related phrases to add variety to your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that's the place where
Replaces 'is' with 's' and adds 'place', emphasizing the location.
there is where
Emphasizes existence at the specified location.
that is the location of
More formal, specifying the exact location.
that's where you'll find
Highlights finding something at a specific place.
it is in that place that
More emphatic and literary way to indicate a place.
that's the spot where
Uses 'spot' instead of 'place' for a slightly less formal tone.
this is the area where
More descriptive, referring to a broader area.
that is the site of
Formal, often used when referring to events or historical occurrences.
that's the point at which
Shifts focus to a moment or point in time related to a location.
this is where it happens
Highlights activity at a given location.
FAQs
How can I use "that is where" in a sentence?
Use "that is where" to connect a description of a place with an action or state related to it. For example, "Paris is the city of lights; "that is where" I fell in love with art".
What are some alternatives to "that is where"?
Alternatives include phrases like "that is the place where", "there is where", or "that is the location of", depending on the specific nuance you want to convey.
Is it ever incorrect to use "that is where"?
Yes, it's incorrect to use "that is where" if you're not referring to a physical location. For abstract ideas or times, use "that is when" or "that is how" instead.
What's the difference between "that is where" and "this is where"?
"That is where" typically refers to a place previously mentioned or understood in context, while "this is where" is used to introduce a place directly or in the immediate setting. The choice depends on whether the location is already known to the audience.
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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