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
by that definition
Grammar usage guide and real-world examplesUSAGE SUMMARY
"by that definition" is a correct and usable phrase in written English.
You can use it when someone has provided a definition or explanation and you want to indicate that the following statement is based on that definition or explanation. For example: "By that definition, it is clear that this strategy will be successful."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(18)
under that definition
in that moment
in that manner
in that expiration
in that tenure
in this expression
in that period
in that duration
in that timeframe
in that time frame
in the long term
in that perspective
in that context
during that period
in accordance with this definition
in that term
within that timeframe
for that period
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
59 human-written examples
By that definition hers is a BPL family, and is entitled to up to 35kg of subsidised grains per month. .
News & Media
By that definition and perspective, the way we work together definitely is a radical collaboration.
Academia
By that definition, this "Seagull" is anything but graceful.
News & Media
And by that definition, Cameron is responsible for many gaffes.
News & Media
By that definition Obama is a politician, not a statesman.
News & Media
By that definition such people have always been around.
News & Media
By that definition, it is obviously nonexistent in our country.
News & Media
By that definition, was Trump engaging in charity?
News & Media
So by that definition, yes, the mission was a success.
News & Media
By that definition, Japan qualifies as the world's biggest.
News & Media
By that definition, Unlawful Killing may finally have found its spiritual home.
News & Media
Expert writing Tips
Best practice
Ensure the definition you are referring to is clear and has been explicitly stated before using "by that definition". This avoids ambiguity and ensures your audience understands the connection you are making.
Common error
Avoid using "by that definition" if the relevant definition is vague, implied, or hasn't been explicitly mentioned. Instead, clarify the definition or rephrase to provide more context for your statement.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "by that definition" functions as a transitional phrase or discourse marker. It serves to explicitly link a preceding definition or explanation to a subsequent statement or conclusion, indicating that the latter is directly derived from or based on the former. Ludwig AI confirms that it is considered grammatically correct and widely used.
Frequent in
News & Media
50%
Academia
25%
Science
10%
Less common in
Formal & Business
5%
Wiki
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "by that definition" is a commonly used and grammatically sound phrase that serves as a transitional marker, connecting a previously stated definition to a subsequent statement or conclusion. According to Ludwig AI, its main function is to ensure clarity and precision in reasoning. The phrase sees frequent usage in "News & Media", academic, and professional contexts. When using this phrase, ensure that the definition you refer to is clearly established to avoid ambiguity. Remember, alternatives such as "according to that definition" or "based on that definition" can be used to add variety to your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
according to that definition
Replaces "by" with "according to", emphasizing the source of the definition.
based on that definition
Emphasizes the foundation of the statement on the provided definition.
in light of that definition
Suggests the definition sheds light on the subsequent statement.
given that definition
Highlights the definition as a given premise for the following conclusion.
under that definition
Implies the statement falls within the scope or conditions of the definition.
if we accept that definition
Introduces a conditional element, suggesting the statement holds true if the definition is accepted.
taking that definition into account
Emphasizes the consideration of the definition in reaching the subsequent statement.
that being the definition
Rephrases the connector using a participial phrase.
using that definition as a guide
Highlights the definition's role as a guiding principle.
employing that definition
Uses a more formal verb ("employing") to indicate the use of the definition.
FAQs
How can I use "by that definition" in a sentence?
Use "by that definition" to connect a previously stated definition to a subsequent conclusion or statement. For example, "A successful project meets all objectives. "By that definition", our project was a failure."
What are some alternatives to "by that definition"?
Alternatives include "according to that definition", "based on that definition", or "in light of that definition" depending on the specific nuance you wish to convey.
Is it redundant to use "by that definition" if the definition is already obvious?
While it might seem redundant, using "by that definition" can still add clarity and emphasis to your argument, particularly in formal writing. However, in informal contexts, it might be omitted if the connection is undeniably clear.
Can I use "by this definition" interchangeably with "by that definition"?
Yes, "by this definition" and "by that definition" are often interchangeable. Use "by this definition" when referring to a definition in the immediate context, and "by that definition" when referring to a definition stated earlier.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested