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
common friend
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "common friend" is correct and can be used in written English.
For example, "My sister and I reunited after many years thanks to a common friend."
✓ Grammatically correct
News & Media
Academia
Wiki
Alternative expressions(19)
mutual acquaintance
shared contact
mutual connection
person we both know
mutual consciousness
mutual familiarity
mutual awareness
mutual understanding
mutual relationship
common acquaintance
mutual relationships
mutual support
mutual love
mutual admiration
mutual fund
mutual consent
mutual respect
friend in common
friends in common
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
45 human-written examples
I met her through a common friend.
News & Media
We need one more common friend.
News & Media
We had a common friend, who had been a labor organizer, who introduced us.
Academia
He frequently tells the Rev. David Stinson what a common friend, Rabbi Kushner, preached about the previous week.
News & Media
When the two met six years ago through a common friend, Mr. Speigler knew nothing about New Jersey.
News & Media
Yves, their common friend, tries to reconcile their views and only succeeds in antagonising both of them.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
15 human-written examples
"You can find common friends" — he snapped his fingers — "just like that".
News & Media
The method involves examining whether members of a network are connected by looking at how many common "friends" they have, how many common friends those friends have, and so on.
Academia
But he recently informed the Yankees through common friends at Goldman Sachs that he was reconsidering his stance.
News & Media
"I kept asking common friends and sometimes even strangers for any possible clue of her whereabouts," he said.
News & Media
Please explain why an intelligent and worldly surgeon, who is divorced, would date a manicurist with whom he shares no common friends or interests.
News & Media
Expert writing Tips
Best practice
When introducing two people, mentioning a "common friend" can help break the ice and establish a comfortable starting point for conversation.
Common error
Avoid using "mutual friend" interchangeably with "common friend" without considering the nuance. "Common friend" emphasizes shared, while "mutual friend" stresses reciprocity between the involved parties. Although they are often used interchangeably, "common friend" is more technically accurate when describing a friend shared by two people.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "common friend" functions as a noun phrase, typically serving as the object of a preposition or as a subject complement. It identifies a person who is a friend to two or more individuals. Ludwig examples confirm its usage in various sentence structures.
Frequent in
News & Media
50%
Academia
20%
Wiki
10%
Less common in
Science
8%
Formal & Business
7%
Reference
5%
Ludwig's WRAP-UP
The phrase "common friend" is a widely used and grammatically sound expression in English, as affirmed by Ludwig AI. It serves to denote a person who is friends with multiple individuals, creating a social link between them. While often used interchangeably with "mutual friend", "common friend" is more precise when describing a shared friendship. The phrase appears frequently in diverse contexts, including news, academic writing, and informal conversation. To enhance clarity and avoid ambiguity, it's essential to use the term accurately and consider alternative phrases such as "shared contact" or "mutual acquaintance" depending on the nature of the relationship.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
mutual friend
Uses "mutual" instead of "common", providing a slightly more formal tone.
shared friend
Highlights that the friendship is shared by multiple people.
mutual acquaintance
Replaces "friend" with "acquaintance", suggesting a less close relationship.
mutual connection
Focuses on the relationship itself rather than the person.
shared contact
Emphasizes the connection as a professional or casual link.
linking friend
Focuses on the role of the friend in connecting people.
connecting acquaintance
Combines the ideas of connection and less close relationship.
common associate
Replaces "friend" with "associate", indicating a business or professional connection.
go-between friend
Highlights the intermediary role of the friend.
bridge between us
Metaphorically describes the friend as a connection point.
FAQs
How can I use "common friend" in a sentence?
You can use "common friend" to indicate that two or more people share a friendship with the same person. For instance, "We discovered we both knew Sarah; she was our "common friend"".
Is it better to say "mutual friend" or "common friend"?
While both phrases are used, "common friend" is generally considered more accurate when referring to a single friend shared between two people. "Mutual friend" implies a reciprocal friendship, which isn't always the case. So, stick to "common friend" for better accuracy.
What are some alternatives to saying "common friend"?
Alternatives to "common friend" include phrases like "mutual acquaintance", "shared contact", or simply "mutual friend", depending on the context and the nature of the relationship.
How does having a "common friend" affect social interactions?
Having a "common friend" can create a sense of familiarity and trust between individuals who are meeting for the first time. It provides a shared connection and a potential topic for conversation, making social interactions smoother and more comfortable.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
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
4.5/5
Expert rating
Real-world application tested