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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
an acquaintance in common
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "an acquaintance in common" is correct and usable in written English.
It can be used when referring to a mutual person that two or more individuals know. Example: "I was surprised to learn that we have an acquaintance in common from college."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
a mutual relationship
a criminal acquaintance
a shared acquaintance
a shared contact
a mutual someone
a mutual contact
an associate known by each of us
a mutual consciousness
a mutual acquaintance
a mutual recognition
someone we both know
a mutual friend
a mutual understanding
a mutual interrelationship
a shared connection
a mutual review
a mutual connection
a mutual experience
a person we both know
a friendly acquaintance
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
1 human-written examples
We played the name game and came up with an acquaintance in common; again I envisioned the what-if.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
The term refers to the recurrent eerie phenomenon in which the unknown quantity in the adjacent airline seat turns out to have at least one acquaintance in common with you.
News & Media
They will stay, and those two 'well-poisoners' — the Nazis deserve!" The two women never saw each other again after 1930, when Dietrich left Germany, nor did they write or speak or maintain more than a few acquaintances in common.
News & Media
Arachana smiled at an acquaintance in the crowd.
News & Media
They were also afraid that they would run into an acquaintance in local CHSCs.
Science
The donor is often a family member but can also be a friend or an acquaintance in the Netherlands [48].
Science
Walk dogs at a nearby animal shelter or visit an acquaintance in the hospital.
Wiki
And there's even a magic number of acquaintances in common that makes you 90% more likely to want to get frisky….
News & Media
"But this didn't make sense to me since they had many friends and acquaintances in common.
News & Media
The finding that short cuts make all the difference explains why total strangers can quickly determine that they have acquaintances in common and why epidemics spread so rapidly in the modern world.
News & Media
The researchers found that despite their stated intentions, most of the executives spent the majority of their time with attendees they already knew and met new people only if they had acquaintances in common.
News & Media
Expert writing Tips
Best practice
When using "an acquaintance in common", ensure that both parties understand who is being referred to, to avoid confusion.
Common error
Avoid overstating the relationship. Using "an acquaintance in common" implies a casual connection, not necessarily a close friendship. Don't assume a deep bond exists based solely on this shared contact.
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "an acquaintance in common" functions as a noun phrase. It typically serves to identify a shared contact between two or more individuals, as demonstrated in the Ludwig examples.
Frequent in
News & Media
60%
Science
20%
Formal & Business
10%
Less common in
Wiki
5%
Encyclopedias
3%
Academia
2%
Ludwig's WRAP-UP
In summary, "an acquaintance in common" is a grammatically sound noun phrase used to describe a shared connection between individuals. According to Ludwig, its usage is relatively rare. While the phrase is generally acceptable, it's important to use it accurately to avoid overstating the relationship's depth. Better alternatives are "a mutual acquaintance" or "a shared connection", depending on the context. You can use "an acquaintance in common" in general conversations or informal writing; however, avoid assuming a deeper bond exists based solely on the shared acquaintance.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a mutual acquaintance
Directly indicates a person known by both parties.
an acquaintance we share
Rephrases to emphasize sharing the acquaintance.
someone we both know
Simple way of stating that a person is known by both individuals.
someone known to both of us
Emphasizes mutual knowledge of the person.
a shared connection
Emphasizes the link or bond that two or more people have.
a mutual contact
Indicates the mutual professional relationship between individuals.
a contact in common
Similar to common contact, but slightly more general.
a common contact
Highlights the professional or networking aspect of the shared acquaintance.
a connection through someone
Highlights that connection is established through someone else.
a link between us
Focuses on the connection aspect rather than the person themselves.
FAQs
What does "an acquaintance in common" mean?
The phrase "an acquaintance in common" refers to a person that two or more people both know, but not necessarily closely. It indicates a shared, but possibly superficial, connection.
What's a more formal way to say "an acquaintance in common"?
A more formal alternative to "an acquaintance in common" is "a mutual acquaintance" or "a shared contact", depending on the context.
How can I use "an acquaintance in common" in a sentence?
You can use "an acquaintance in common" by saying something like, "It turns out we have an acquaintance in common from our time working at the same company."
Are there any synonyms for "an acquaintance in common"?
Yes, some synonyms for "an acquaintance in common" include "a mutual connection", "someone we both know", or "a common contact".
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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
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested