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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
not of
Grammar usage guide and real-world examplesUSAGE SUMMARY
"not of" is correct and usable in written English.
It is often used to denote possession or to indicate a lack of something. For example, "He is not of this world" or "This is not of my doing."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
Well, not of course.
News & Media
They're not, of course.
News & Media
He's not, of course.
News & Media
But not of class.
News & Media
Not of this season.
News & Media
"Not of biology.
News & Media
Not of the police.
News & Media
Not of desire.
News & Media
It's not, of course.
News & Media
It has not, of course.
News & Media
"I'm not of that school.
News & Media
Expert writing Tips
Best practice
Use "not of" to clearly indicate a lack of belonging, origin, or a specific attribute. Ensure the context makes the meaning unambiguous. For example, "This design is not of my creation" clearly states you didn't create the design.
Common error
Avoid using "not of" when a simpler construction like "isn't" or "doesn't" would be clearer and more direct. Overusing "not of" can make your writing sound unnecessarily formal or convoluted when simpler alternatives exist.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "not of" primarily functions as a negative prepositional phrase, indicating a lack of belonging, origin, or possession. As Ludwig AI suggests, this is commonly used to denote that something doesn't originate from a specific source or doesn't possess a particular quality. This usage is evident in examples such as "He is not of this world."
Frequent in
News & Media
45%
Science
20%
Formal & Business
15%
Less common in
Encyclopedias
5%
Wiki
5%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "not of" serves as a versatile tool for indicating a lack of belonging, origin, or characteristic. As confirmed by Ludwig AI, it's grammatically correct and frequently used across various contexts, particularly in news and media, science, and formal business settings. While simpler alternatives may exist, "not of" offers a precise way to express non-association, as seen in numerous examples. Remember to consider the context to ensure clarity and appropriateness in your writing. The high frequency and authoritative sources underscore its reliability and widespread acceptance.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
does not belong to
This alternative directly states that something is not a member or part of a particular group or category.
is not from
This indicates origin or source, similar to saying something didn't originate or come from a specific place or person.
lacks
This term succinctly conveys the absence of a particular quality or attribute.
is devoid of
This phrase emphasizes a complete absence of something, suggesting a more thorough lack.
does not possess
Focuses on the absence of ownership or inherent qualities.
is without
Similar to "lacks", but can also imply a condition or state of being without something.
is independent of
Suggests a lack of reliance or connection to something else.
is separate from
Highlights the distinction and non-association between two entities.
unrelated to
Indicates that there is no connection or link between the subjects being discussed.
bears no relation to
Emphasizes the absence of any kind of connection or similarity.
FAQs
How can I use "not of" in a sentence?
Use "not of" to express that something does not belong to, originate from, or possess a certain quality. For instance, "The idea is "not of my own"" or "He is "not of this world"".
What are some alternatives to "not of"?
Depending on the context, you can use phrases like "does not belong to", "is not from", "lacks", or "is devoid of" as alternatives to "not of". For example, instead of "This style is not of this era", you could say "This style "does not belong to this era"".
Is it correct to say "not of" instead of "isn't"?
While grammatically correct, using "not of" in place of "isn't" can sometimes sound overly formal or stilted. Consider the context and choose the option that provides the clearest and most natural flow. For example, instead of "He is not of legal age" you can say "He "isn't of legal age"".
What's the difference between "not of" and "without"?
"Not of" typically indicates origin, belonging, or inherent quality, whereas "without" usually indicates the absence of something. For instance, "He is not of this town" suggests he doesn't originate from here, while "He is without money" means he lacks money. Using "He is "not of money"" would be incorrect.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested