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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
five-year-old
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "five-year-old" is correct and usable in written English.
It is typically used to describe the age of a child or an object that is five years old. Example: "My neighbor has a five-year-old who loves to play in the park."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(6)
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
43 human-written examples
Nor a five-year-old.
News & Media
Five-year-old Gudiya was missing.
News & Media
I have a five-year-old daughter.
News & Media
Five-year-old boy.
News & Media
"a five-year-old - imagine!" She continued.
News & Media
Even our five-year-old was entranced.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
17 human-written examples
Twenty-five-year-old Nic DeNinno was in 3rd Platoon.
News & Media
Eighty-five-year-old Capt.
News & Media
Thirty-five-year-old children!
News & Media
How did a twenty-five-year-old pull it off?
News & Media
I was a thirty-five-year-old from Atlanta.
News & Media
Expert writing Tips
Best practice
When describing age, use "five-year-old" before a noun (e.g., "five-year-old child") as a compound adjective. When it follows a noun, it should be "five years old" (e.g., "The child is five years old").
Common error
Avoid using hyphens incorrectly. "My child is five-year-old" is incorrect; the correct form is "My child is five years old". The hyphen is only used when "five-year-old" acts as an adjective before the noun.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "five-year-old" functions primarily as a compound adjective. It modifies a noun to indicate that the noun is of that age. As Ludwig AI confirms, it's grammatically sound and common.
Frequent in
News & Media
69%
Science
13%
Formal & Business
8%
Less common in
Wiki
6%
Reference
2%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, the phrase "five-year-old" is a grammatically correct and very common compound adjective used to describe someone or something that is five years of age. As Ludwig AI confirms, it is widely used and understood. The most frequent contexts are in News & Media, followed by Science and Formal & Business settings. Remember to use "five-year-old" before a noun and "five years old" after a linking verb. Avoid misusing hyphens in your writing to maintain grammatical correctness.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
child aged five
Rephrases the age using 'aged' instead of a hyphenated adjective.
child of five years
Expresses the age using 'of' instead of a hyphenated structure.
a five-year-old child
Adds the redundant but sometimes emphatic noun "child" after the age descriptor.
five-year-old kid
Uses the more informal term "kid" instead of "child".
youngster aged five
Replaces "child" with the synonym "youngster" and uses the "aged" construction.
preschooler
Identifies the person as being of preschool age; less precise.
toddler (approaching school age)
Describes someone slightly younger but nearing five years old. This phrase assumes they are about to turn 5.
a little kid
A more general term indicating a very young child; less specific about age.
early childhood age
Broader term referring to the developmental stage around five years old.
infant transitioning to childhood
Describes a period from infancy to childhood in which the person is nearly five.
FAQs
How do I properly use "five-year-old" in a sentence?
Use "five-year-old" as a compound adjective before a noun, like in "a "five-year-old" boy." When it follows the noun, say "five years old," as in "The boy is five years old."
Is it correct to say "a child of five year" instead of "five-year-old"?
While grammatically acceptable, "a child of five years" is less common. "Five-year-old" is more concise and frequently used in modern English.
What are some similar terms to describe a "five-year-old" child?
You can use terms like "child aged five", "preschooler", or simply describe them as being in their "early childhood age".
What's the difference between "five-year-old" and "five years old"?
"Five-year-old" functions as an adjective describing a noun (e.g., "a "five-year-old" car"), whereas "five years old" is used after a linking verb to state someone's or something's age (e.g., "The car is five years old").
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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
4.5/5
Expert rating
Real-world application tested