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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
in their 20s
Grammar usage guide and real-world examplesUSAGE SUMMARY
'in their 20s' is correct and usable in written English.
You can use this phrase to describe people who are between the ages of 20 and 29. For example: Many people in their 20s are still deciding what career path they want to pursue.
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(5)
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 were in their 20s".
News & Media
Five were in their 20s.
News & Media
Others were in their 20s and 30s.
News & Media
Fourteen of them were in their 20s.
News & Media
Most patients are in their 20s.
News & Media
Mostly they were in their 20s.
News & Media
They're in their 20s and early 30s.
News & Media
Some are now in their 20s.
News & Media
They're in their 20s.
News & Media
Women in their 20s outearn men in their 20s.
News & Media
People's eyes stop growing in their 20s.
Academia
Expert writing Tips
Best practice
When writing about age groups, ensure that using "in their 20s" is appropriate for the context and doesn't over generalize individuals within that age range. Consider if more specific details are necessary.
Common error
Avoid writing "in there 20's", which incorrectly adds an apostrophe. The correct form is "in their 20s", indicating that the 20s belong to the people being discussed.
Source & Trust
91%
Authority and reliability
4.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "in their 20s" functions primarily as an adjectival phrase, modifying a noun or pronoun to specify the age range of a group of people. It specifies a demographic segment, as shown in many of Ludwig's examples.
Frequent in
News & Media
77%
Academia
11%
Science
6%
Less common in
Formal & Business
3%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "in their 20s" is a very common and grammatically correct way to refer to people aged between 20 and 29. Ludwig AI confirms its validity and widespread use. This phrase serves to categorize individuals, often to discuss trends, experiences, or characteristics common within that age group. As shown by Ludwig, it appears most frequently in news and media, followed by academic and scientific contexts. When using the phrase, ensure that it's appropriate for the context and that more specific details aren't needed. Remember to use the correct possessive form: "in their 20s", not "in there 20's".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
twenty-somethings
A shorter and more casual expression to define that group of age.
aged between twenty and twenty-nine
Specifies the age range more explicitly, replacing the possessive construction.
in their early twenties
Focuses on the initial years of the decade, narrowing the age range.
during their twenties
Emphasizes the period of life rather than the specific ages.
in the third decade of life
Uses a more formal and scientific way to refer to the age range.
those in their third decade
Uses a slightly more elevated term compared to decade of life.
young adults
Describes individuals in that age bracket based on the life stage.
individuals between 20 and 29
Changes word order and vocabulary to communicate the same idea.
between twenty and thirty years old
Gives a more expanded age range with explicit numbers.
in the twenty to twenty-nine age bracket
Refers to the group by using a general bracket of age.
FAQs
How do I use "in their 20s" in a sentence?
Use "in their 20s" to describe a group of people whose ages are between 20 and 29. For example: "Many people "in their 20s" are focused on starting their careers".
What's another way to say "in their 20s"?
Alternatives include "twenty-somethings", "aged between twenty and twenty-nine", or "in their early twenties".
Is it more appropriate to say "in their twenties" or "in their 20s"?
Both "in their twenties" and "in their 20s" are correct and commonly used. "In their 20s" is more concise, while "in their twenties" spells out the number.
What are some common experiences for people "in their 20s"?
People "in their 20s" often focus on education, career development, forming relationships, and gaining independence. These experiences can vary widely based on individual circumstances.
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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
91%
Authority and reliability
4.8/5
Expert rating
Real-world application tested