Used and loved by millions
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
of theirs
Grammar usage guide and real-world examplesUSAGE SUMMARY
"of theirs" is a perfectly valid phrase to use in written English.
An example sentence might be: "They left all of their old clothes in a pile of theirs."
✓ Grammatically correct
News & Media
Science
Wiki
Formal & Business
Alternative expressions(2)
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
She's one of theirs".
News & Media
And all of theirs.
News & Media
"Was it that woman of theirs, Biffer?
News & Media
Pilar was a relation of theirs.
News & Media
And I'm in three of theirs!
News & Media
Anyway, it's no business of theirs.
News & Media
John Yossarian were of theirs.
News & Media
Our methods are a generalization of theirs.
China, India and South Korea recouped 71-74% of theirs.
News & Media
Bolivia's socialists saved much of theirs.
News & Media
Al-Araibi was one of theirs.
News & Media
Expert writing Tips
Best practice
Use "of theirs" to clearly indicate that something belongs to or is associated with a group of people previously mentioned. Ensure the context makes it clear who "theirs" refers to.
Common error
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "of theirs" primarily functions as a possessive pronoun. It indicates that something belongs to or is associated with a group of people. Ludwig shows many examples of its use in various contexts.
Frequent in
News & Media
67%
Wiki
14%
Science
9%
Less common in
Formal & Business
6%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "of theirs" is a possessive pronoun used to indicate that something belongs to a group. Ludwig AI confirms its grammatical correctness and common usage. It's important to ensure that the referent is clear and that the phrase is not used in place of singular possessive pronouns like ""of his"" or ""of hers"". As shown by Ludwig, this phrase appears most frequently in news and media, signifying its prevalence in general communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
belonging to them
Replaces the possessive construction with a prepositional phrase indicating ownership.
that which belongs to them
A more formal and explicit way of indicating possession.
their own
Emphasizes the personal ownership or connection.
from their collection
Specifies that something is taken or originates from their possessions.
a possession of theirs
Highlights the item as something they own.
among their belongings
Indicates something is included within their possessions.
something they possess
Focuses on the act of possessing something.
in their ownership
A formal way of stating that they own something.
part of their property
Highlights the item as a component of their overall property.
within their domain
Suggests control or influence over something.
FAQs
How can I use "of theirs" in a sentence?
Use "of theirs" to indicate possession or association with a group. For example, "That car is "of theirs"" means the car belongs to them.
What phrases are similar to "of theirs"?
Similar phrases include "belonging to them", "their own", or "a possession "of theirs"", which all express ownership or association.
Is it ever incorrect to use "of theirs"?
What's the difference between "their" and "of theirs"?
"Their" is a possessive adjective (e.g., "their car"), while "of theirs" is a possessive pronoun (e.g., "that car is "of theirs"").
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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