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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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two years old

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "two years old" is correct and usable in written English.
You can use it to describe something or someone's age. For example: "My dog is two years old."

✓ Grammatically correct

News & Media

Formal & Business

Encyclopedias

Wiki

Human-verified examples from authoritative sources

Exact Expressions

46 human-written examples

It was less than two years old.

News & Media

Independent

Zindzi was barely two years old.

News & Media

Independent

My son is two years old.

News & Media

The New Yorker

About two years old.

The Environmental Defense Fund was two years old.

News & Media

The New Yorker

MS Since he was two years old.

News & Media

The Guardian
Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

13 human-written examples

Sunil was twenty-two years old.

News & Media

The New Yorker

"I'm twenty-two years old," he said.

News & Media

The New Yorker

We're twenty-two years old.

He is now ninety-two years old.

News & Media

The New Yorker

"Her son is twenty-two years old.

News & Media

The New Yorker
Show more...

Expert writing Tips

Best practice

Use "two-year-old" as a compound adjective to describe a noun (e.g. a two-year-old child).

Common error

Avoid adding a hyphen when "two years old" is used as a predicate adjective (e.g. "The child is two years old."), but use a hyphen when it modifies a noun (e.g. "a two-year-old child").

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "two years old" functions primarily as an adjective phrase or predicate adjective, describing the age of a person, object, or entity. Ludwig indicates its usage across a variety of contexts to specify duration or developmental stage.

Expression frequency: Very common

Frequent in

News & Media

50%

Formal & Business

20%

Wiki

10%

Less common in

Encyclopedias

8%

Science

6%

Reference

6%

Ludwig's WRAP-UP

In summary, the phrase "two years old" is a common and grammatically sound way to describe the age of a person, object, or concept. As Ludwig AI confirms, it is widely used across various contexts, ranging from news articles to formal business documents. When used as a modifier before a noun, remember to hyphenate it as "two-year-old". For more formal writing, consider alternatives such as "aged two years" or "of two years". Be mindful of the context to ensure clarity and appropriateness. "Two years old" serves a straightforward function in specifying age or duration, making it a valuable and versatile phrase in your writing arsenal.

FAQs

How do I properly use "two years old" in a sentence?

Use "two years old" as a predicate adjective after a linking verb, such as "is" or "was". For instance, "The puppy is two years old." When using it as a modifier before a noun, hyphenate it: "a two-year-old puppy".

Are there any formal alternatives to saying "two years old"?

Yes, you can use phrases like "aged two years" or "of two years" for a more formal tone.

What's the difference between "two years old" and "two-year-old"?

"Two years old" is used after a linking verb to describe age. "Two-year-old" is a compound adjective used before a noun, such as in "a two-year-old car". When using it this way, hyphenate it.

Which is correct, "two year old" or "two years old"?

"Two years old" is generally the correct and more common form. "Two year old" might be encountered but is less standard.

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Source & Trust

84%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: