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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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a decade old

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "a decade old" is correct and usable in written English.
You can use it to describe something that has existed or been in use for ten years. Example: "The software has become a decade old, and it's time for an update to keep up with modern standards."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Most are more than a decade old.

Houses, not yet a decade old, crumble.

The conflict's roots are a decade old.

News & Media

The New York Times

The quote is a decade old.

News & Media

The Guardian

Her support for sanctions is a decade old.

News & Media

The Economist

Eight bureaucracies had requests more than a decade old.

News & Media

The New York Times

But the origins of the strife are a decade old.

News & Media

The Economist

The brightest memories may be more than a decade old.

Stravinsky's shocking, exhilarating score was just over a decade old.

Technically, the Birmingham Royal Ballet is only a decade old.

Benzocaine-smeared condoms are more than a decade old.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

Use "a decade old" to describe the age or duration of something. For example, "The technology is a decade old."

Common error

Avoid using "a decade old" as a direct noun. It typically functions as an adjective phrase modifying a noun. Instead of saying "That is a decade old", specify what is "a decade old", such as "That car is a decade old".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "a decade old" typically functions as an adjectival phrase, modifying a noun to indicate its age or duration of existence. As Ludwig AI explains, it's grammatically sound for describing age. Ludwig provides many examples of its correct usage.

Expression frequency: Very common

Frequent in

News & Media

58%

Science

27%

Formal & Business

15%

Less common in

Academia

10%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "a decade old" is a grammatically correct and versatile way to describe the age or duration of something. Ludwig AI validates its proper usage, supported by numerous examples across various contexts such as News & Media, Science and Business. It functions primarily as an adjectival phrase, modifying a noun to provide temporal context. While interchangeable with alternatives like "ten years old" or "ten-year-old", "a decade old" offers a concise and often suitable option. As Ludwig shows, understanding its function helps prevent common errors, such as misusing it as a direct noun. Ludwig is a great tool to understand the use of this common expression.

FAQs

How can I use "a decade old" in a sentence?

You can use "a decade old" to describe something's age or the length of time it has existed. For example, "The building is "a decade old"" or "The research is based on data that is "a decade old"".

What are some alternatives to saying "a decade old"?

Alternatives include "ten years old", "ten-year-old" (when used as a compound adjective), "decade-long", or "approximately ten years old", depending on the context.

Is it correct to say "ten year old" instead of "a decade old"?

While "ten year old" might be understood, "a decade old" or "ten years old" are grammatically preferred. "Ten-year-old" is correct when used as a compound adjective (e.g., "a ten-year-old car").

Which is better, "a decade old" or "ten years old"?

Both "a decade old" and "ten years old" are correct and often interchangeable. "A decade old" might sound slightly more concise or informal, while "ten years old" is more explicit. The best choice depends on the specific context and desired tone.

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Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: