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
separate it by
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "separate it by" is correct and usable in written English.
You can use it when instructing someone to divide or distinguish items or elements using a specific method or criteria. Example: "To organize the data effectively, please separate it by categories."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(3)
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
3 human-written examples
"You learn to separate it by living the life of a pitcher for a day, just mentally," Ventura said.
News & Media
He claims to be the first to figure out how to take nearly any kind of plastic trash, which is usually a mongrel blend of up to 20 different plastics, and separate it by chemical type.
News & Media
If the particle can be separated from the airflow at the minimum flow rate, which is the minimum volume flow rate of the ECP fan, then it must be possible to separate it by centrifugal force when the flow rate is higher than the minimum flow rate.
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
They separated it by color: brown, which is the most common cashmere in Mongolia; red, which is rarer; light gray; and white, which is the most highly prized, because it can be dyed in the widest variety of colors.
News & Media
The Huffington Post collected the data and separated it by whether the tweet came from Trump's Android or an iPhone.
News & Media
We take the stars from heaven, the red from our mother country, separating it by white stripes, thus showing that we have separated from her, and the white stripes shall go down in posterity representing liberty.
News & Media
We then compared the peak intensities of the oligomers in the same spectrum using Hsp70 expressed in E. coli (Hsp70 E. coli ) labeled with heavy isotopes (C), separating it by mass from Hsp70 expressed in Sf9 cells (Hsp70Sf9).
Science
Then, he/she separates it by family/recipient and freezes the portions individually.
Wiki
The two were separated, it would seem, by a few thousand votes.
News & Media
This creek was upstream from the first, and separated from it by a high waterfall.
News & Media
South Ossetia has sought to unite with the adjoining Russian republic of North Ossetia, which was separated from it by Stalin.
News & Media
Expert writing Tips
Best practice
When instructing someone to organize information, use "separate it by" to clearly specify the criteria for division, such as "Separate it by color", "Separate it by date", or "Separate it by importance".
Common error
Ensure the 'by' criterion is explicitly stated to avoid confusion. For instance, instead of saying "Separate it", specify "Separate it by category" or "Separate it by size" to provide clear instructions.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "separate it by" functions as a prepositional phrase used to specify the method or criteria used to divide or categorize something. Ludwig AI confirms that this phrase is usable in written English.
Frequent in
News & Media
33%
Science
33%
Wiki
33%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "separate it by" is a grammatically sound prepositional phrase used to denote the method or criteria for division or categorization. Ludwig AI confirms its usability in English writing. Though relatively rare in occurrence, it is applicable across various contexts such as news, science, and general instructions. When employing this phrase, ensure clarity in specifying the 'by' criterion to avoid ambiguity. Alternatives like "divide it according to" and "categorize it by" can be used for variety. This phrase helps provide structured guidance and clarity in organizing information.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
categorize it by
A direct synonym using "categorize" instead of "separate".
divide it according to
Replaces "separate" with "divide" and "by" with "according to", focusing on the act of dividing based on a criterion.
classify it based on
Uses "classify" to emphasize categorization and "based on" to specify the criteria.
segment it by
Implies dividing something into distinct segments based on a criterion.
sort it by means of
Emphasizes the sorting process using a particular method.
break it down by
Focuses on breaking something into smaller parts based on a certain attribute.
group it under
Focuses on grouping items into categories.
arrange it according to
Emphasizes arrangement based on a specific method.
distinguish it through
Highlights the act of distinguishing using a particular characteristic.
differentiate it by
Stresses the act of differentiating something based on specific criteria.
FAQs
How can I use "separate it by" in a sentence?
Use "separate it by" when you want to divide something into groups based on specific criteria. For example, "Separate the documents by date" or "Separate the clothes by color".
What are some alternatives to "separate it by"?
You can use alternatives like "divide it according to", "classify it based on", or "categorize it by" depending on the specific context.
Is it correct to say "separate it with" instead of "separate it by"?
While "separate it with" might be understood, "separate it by" is the grammatically correct and more common way to express dividing something based on a specific criterion.
What's the difference between "separate it by" and "distinguish it by"?
"Separate it by" implies a division into distinct groups, while "distinguish it by" focuses on highlighting differences based on certain characteristics. They're similar, but "separate" emphasizes division and "distinguish" emphasizes difference.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested