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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
twenty-year-old
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "twenty-year-old" is correct and usable in written English.
It is typically used to describe someone who is 20 years old, often in contexts related to age or demographics. Example: "The twenty-year-old student won the scholarship for her outstanding academic performance."
✓ Grammatically correct
News & Media
Formal & Business
Science
Alternative expressions(1)
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
49 human-written examples
Twenty-year-old me thinks, "Dope.
News & Media
Twenty-year-old me thinks, "Boo!
News & Media
Then his twenty-year-old Firebird died.
News & Media
Twenty-year-old me thinks, "Power couple".
News & Media
Yasmeen, a twenty-year-old medical student.
News & Media
Where are the twenty-year-old Reznors?
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
11 human-written examples
Well into his 40th year, older than the referee for Tuesday's match, Carlos Velasco Carballo, van der Sar insists that this is his final season.
News & Media
The BIMAs are 23rd years old and are described as "the only significant digital creative awards in the UK which celebrate digital creative excellence and best practice".
News & Media
Twenty-year old Jessica Ennis took heptathlon bronze.
News & Media
Twenty year-old Layth Hambali is a violinist with the Strings.
News & Media
This twenty year old guy.
News & Media
Expert writing Tips
Best practice
When using "twenty-year-old" as an adjective, hyphenate the phrase (e.g., "a twenty-year-old student"). When used as a noun, it's not hyphenated (e.g., "He is twenty years old").
Common error
Avoid hyphenating "twenty year old" when it follows a noun. It should only be hyphenated when it precedes the noun as a compound adjective (e.g., "The student is twenty years old" vs. "The twenty-year-old student").
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
Adjectival modifier. The phrase "twenty-year-old" primarily functions as an adjectival modifier, describing a noun by specifying the age (20 years) of that noun. As Ludwig AI points out, this phrase is grammatically correct and widely used.
Frequent in
News & Media
64%
Formal & Business
18%
Science
18%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "twenty-year-old" is a common and grammatically correct way to describe someone who is 20 years old. It functions primarily as an adjectival modifier. Ludwig AI's analysis and the numerous examples highlight its prevalence across diverse contexts, particularly in news and media. When used as an adjective, remember to hyphenate it (e.g., "a twenty-year-old student"), but not when used as a noun phrase (e.g., "He is twenty years old"). Alternative phrases include "person in their twenties" and "young adult". The phrase maintains a neutral tone, making it suitable for a broad spectrum of writing styles.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
20-year-old
Uses numerals instead of spelling out "twenty".
Someone who is twenty years of age
Explicitly states the age of the individual.
Individual aged twenty
More formal phrasing to specify someone's age.
In the early twenties
Specifies someone in the initial years of their twenties.
Person in their twenties
Describes someone within the broader age range of 20-29 years old.
Newly twenty
Emphasizes the recent attainment of the age of twenty.
Young adult
Refers to someone in early adulthood, which typically includes twenty-year-olds.
Twenty something
Informal term for someone in their twenties.
New graduate
Implies someone around twenty who has recently graduated.
Early career professional
Describes someone in their first years of working life, often around twenty.
FAQs
How do I correctly use "twenty-year-old" in a sentence?
"Twenty-year-old" can be used as an adjective before a noun (e.g., "a twenty-year-old student") or as a noun phrase after a linking verb (e.g., "She is twenty years old").
Is it better to write "twenty-year-old" or "20-year-old"?
Both "twenty-year-old" and "20-year-old" are acceptable. "20-year-old" is more common in informal writing, while "twenty-year-old" is preferred in formal contexts.
What are some alternative phrases for "twenty-year-old"?
You can use alternatives like "person in their twenties", "young adult", or "individual aged twenty" depending on the context.
What's the difference between "twenty-year-old" and "in their twenties"?
"Twenty-year-old" refers specifically to someone who is 20 years old. "In their twenties" is a broader term encompassing anyone between the ages of 20 and 29.
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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