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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
they are old
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "they are old" is correct and usable in written English.
You can use it to describe the age of people, objects, or things in a straightforward manner. Example: "The books on the shelf are fascinating, but they are old and fragile."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(3)
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 are old," he said.
News & Media
They are old, traditional institutions".
News & Media
"They are old school.
News & Media
They are old and they are young.
News & Media
They are old friends, Americans.
News & Media
They are old, run-down and inefficient.
News & Media
They are old and/or sick.
News & Media
Some say they are old stocks kept by banks.
News & Media
They are old agents (eg haloperidol, amitriptyline, benzodiazepines…) with the exception of methylphenidate (hyperactivity).
Science
All this before they are old enough to drink.
News & Media
To shoot someone just because they are old?
News & Media
Expert writing Tips
Best practice
When describing people, consider using more specific terms like "elderly" or "senior" for respectful and accurate communication.
Common error
Avoid using "they are old" when a more descriptive term would provide better context. For example, instead of saying "they are old machines", specify "they are outdated and inefficient machines."
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they are old" functions as a declarative statement, attributing the quality of being old to a subject. Ludwig AI confirms its grammatical correctness and wide applicability. It is a simple and direct way to express age or obsolescence.
Frequent in
News & Media
49%
Wiki
24%
Science
15%
Less common in
Encyclopedias
2%
Formal & Business
1%
Academia
1%
Ludwig's WRAP-UP
In summary, the phrase "they are old" is a grammatically sound and commonly used expression to denote age or obsolescence. Ludwig AI confirms its correctness and wide usage. While versatile, consider context-specific alternatives for enhanced precision and formality. Be mindful of potential overgeneralization and strive for clarity when communicating the specific nature of what is being described. Remember to consider more specific and polite phrasing for people. Using more descriptive terms such as "they are aged" or "they are elderly" when appropriate.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
they are aged
Focuses on the process of aging, similar to "they are old".
they are aging
Highlights the ongoing process of becoming old.
they are ancient
Emphasizes a great age, implying a historical or long-standing quality.
they are senior
Implies a higher rank or position due to age or experience.
they are mature
Suggests a developed or seasoned state, often used for people or products.
they are antiquated
Emphasizes being outdated or no longer in use.
they are outdated
Directly indicates something is no longer current or relevant.
they are time-worn
Highlights the effects of time on something, suggesting wear and tear.
they are long-standing
Focuses on the duration of existence or establishment.
they are seasoned
Suggests extensive experience or prolonged use.
FAQs
How can I use "they are old" in a sentence?
You can use "they are old" to describe the age of a group of people, objects, or ideas. For instance, "They are old friends, and we've known each other for years" or "They are old buildings that need renovation".
What's a more formal way to say "they are old"?
In formal contexts, consider using phrases like "they are elderly", "they are senior citizens", or "they are of advanced age". If referring to objects or systems, use "they are antiquated" or "they are outdated".
Which is more appropriate, "they are old" or "they are aged"?
Both "they are old" and "they are aged" are grammatically correct, but "they are aged" is slightly more formal and often used when referring to objects, like wine or cheese, that have undergone a specific aging process. You could also consider the phrase "they are aging".
What are some alternative phrases to "they are old" that don't directly mention age?
Depending on the context, you could use phrases like "they are experienced", "they are well-established", or "they are time-tested". When referring to objects, consider "they are classic" or "they are vintage".
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested