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
they vary in
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "they vary in" is correct and usable in written English.
You can use it to indicate differences or variations in specific characteristics or qualities among a group of items or subjects. Example: "The results of the experiment show that the participants vary in their responses to the treatment."
✓ Grammatically correct
Science
News & Media
Alternative expressions(2)
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 vary in terms of binding affnity and specificity, and, consequently, yield varying intensities.
They vary in quality.
News & Media
And they vary in size.
News & Media
How do they vary in tone?
News & Media
They vary in methodology, scope and impact.
News & Media
They vary in architecture and amenities.
News & Media
They vary in deference and decision making.
News & Media
They vary in depth, creating a subtle pulsing pattern.
News & Media
They vary in price range – but each offers good value.
News & Media
They vary in design around the world in 26 countries.
News & Media
These deposits were characterized by X-ray diffraction and they vary in their crystal orientation.
Science
Expert writing Tips
Best practice
When using "they vary in", ensure that the subject ('they') is clearly defined and the specific characteristic being varied is explicitly stated for clarity.
Common error
Avoid using "they vary in" without specifying what they vary in. For example, instead of saying "They vary in quality", be more specific: "They vary in the quality of their ingredients."
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they vary in" functions as a descriptor indicating diversity or differences within a group concerning a particular attribute. Ludwig AI confirms its correctness and usability in written English. The examples provided showcase its application across various subjects and contexts.
Frequent in
News & Media
49%
Science
44%
Wiki
3%
Less common in
Formal & Business
2%
Academia
1%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "they vary in" is a versatile phrase used to indicate differences or variations among a group. Ludwig AI confirms the phrase is correct and usable in written English. It's commonly found in news, scientific, and general contexts. To ensure clarity, always specify what the subjects vary in. Alternatives include "they differ in" or "they fluctuate in". Remember that specifying the attribute of variation is key for effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
they differ in
This alternative uses a more direct synonym for 'vary', emphasizing the differences.
they diverge in
This suggests a branching out or deviation in specific aspects.
they fluctuate in
This implies an irregular rising and falling in a specific attribute.
they change in
Focuses on the aspect of transformation or alteration regarding the specific trait.
they are not uniform in
Highlights the lack of consistency or sameness in a particular characteristic.
they contrast in
Emphasizes the differences are noticeable and create a distinction.
their properties differ in
Specifically focuses on the variance in characteristics or qualities.
the ways in which they differ
This is a more verbose way of saying 'they differ', adding a bit of emphasis.
the dissimilarities between them are in
This emphasizes the discrepancies or points of difference.
they show differences in
This focuses on the act of exhibiting variations or contrasts.
FAQs
How do I use "they vary in" in a sentence?
Use "they vary in" to indicate differences among multiple subjects concerning a specific attribute. For example, "The apples "they vary in" color and size".
What can I say instead of "they vary in"?
You can use alternatives like "they differ in", "they diverge in", or "they fluctuate in" depending on the specific nuance you want to convey. Consider using "they differ in" when you need a general synonym.
Is it better to say "they vary in" or "they vary by"?
While both are grammatically correct, "they vary in" is generally used when discussing the specific characteristic that differs. "They vary by" is used when describing the amount of difference. For example: "They vary in size", vs. "They vary by 10 cm".
What's the difference between "they vary in" and "they are different in"?
"They vary in" is a more concise and direct way to express that differences exist. "They are different in" is grammatically correct but slightly less common. Using "they vary in" often results in a more fluid sentence.
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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
4.6/5
Expert rating
Real-world application tested