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
so defined
Grammar usage guide and real-world examplesUSAGE SUMMARY
"so defined" is a perfectly acceptable phrase that can be used in written English.
It is commonly used in legal and technical writing to move a sentence forward and to clarify the definition of something. For example: "A contract, so defined, is a legally binding agreement between two or more parties."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Academia
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
They're just so defined".
News & Media
When so defined the current is called conventional current.
Encyclopedias
Potential genius, so defined, may go unrecognized or underutilized.
Encyclopedias
That's acceptable on an album so defined by intelligent restraint.
News & Media
Knowledge so defined admits of three degrees, according to Locke.
Encyclopedias
No team has an identity so defined, a collective purpose so clear.
News & Media
For heroines of the Jane Austen ilk to be so defined would have been gratuitous.
News & Media
Any objective that can be so defined, he said in a recent interview, is appropriate.
News & Media
No other country in the Middle East is quite so defined by its leader.
News & Media
My head, my arms — and they were so defined it was crazy.
News & Media
Formative assessment, so defined, is a pivotal element of everyday classroom teaching.
News & Media
Expert writing Tips
Best practice
Use "so defined" to clearly refer back to a specific definition you've already provided, ensuring clarity and avoiding ambiguity.
Common error
Avoid using "so defined" in very simple sentences where the definition is immediately obvious, as it can make the writing sound unnecessarily verbose. Opt for more concise phrasing when appropriate.
Source & Trust
83%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "so defined" serves as an adverbial modifier, clarifying that the term or concept being discussed is being used according to a specific definition previously stated. Ludwig AI confirms this usage with numerous examples across various domains.
Frequent in
Science
31%
News & Media
23%
Encyclopedias
15%
Less common in
Academia
9%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "so defined" is a grammatically correct and frequently used expression, especially in formal and scientific writing. As Ludwig AI illustrates, it functions as an adverbial modifier to explicitly refer back to a specific, previously stated definition, ensuring clarity and precision. While versatile, it's best to avoid overuse in simple sentences where the meaning is already clear. Alternatives like "as defined" and "thus defined" can be used depending on the context. The phrase's prevalence across sources like Britannica, The New York Times, and academic journals underscores its authority and utility in formal discourse.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
as defined
Omits "so", creating a more concise phrasing.
thus defined
Replaces "so" with "thus", indicating a consequence of the definition.
according to this definition
Emphasizes adherence to a specific definition.
by this definition
Highlights the definition itself as the basis for the statement.
given this definition
Indicates that the statement is based on the provided definition.
in this definition
Specifies that the definition is within the current context.
in the aforementioned definition
Refers back to a previously stated definition.
as specified
Emphasizes that the meaning of the term or expression is explained clearly and exactly.
as described
Shifts focus from definition to description, implying a broader explanation.
when defined in this way
Highlights the manner in which something has been defined.
FAQs
How can I use "so defined" in a sentence?
Use "so defined" after a term or concept to refer back to its specific definition that you have provided earlier in your text. For instance: "A parameter, "so defined", must have a value assigned."
What are some alternatives to "so defined"?
You can use alternatives such as "as defined", "thus defined", or "as specified" to convey a similar meaning. The choice depends on the context and the nuance you want to express. For instance: instead of "The variable, so defined, is constant", you could say "The variable, "as defined", is constant".
Is "so defined" formal or informal?
"So defined" is generally considered formal and is suitable for academic, technical, and legal writing. In more casual contexts, simpler phrasing may be preferred.
What's the difference between "as defined" and "so defined"?
"As defined" is a general reference to a definition, while "so defined" specifically refers back to a particular definition already provided in the text. "As defined" could be used to introduce a definition, whereas "so defined" is used to reiterate a definition already made. For example: "Let's consider momentum "as defined" in physics. Momentum, "so defined", helps us understand collisions."
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.6/5
Expert rating
Real-world application tested