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
have been acquainted
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "have been acquainted" is correct and usable in written English.
It can be used to indicate that two people have met or become familiar with each other at some point in the past and that this familiarity continues into the present. Example: "Although we have been acquainted for years, we only recently started to develop a close friendship."
✓ Grammatically correct
News & Media
Science
Academia
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
18 human-written examples
Surely, Don Draper, the essence of the Esquire Man, would have been acquainted with this compendium.
News & Media
Without private fossil collecting, we would not have been acquainted with the magnificent snake with four legs.
News & Media
He may have been acquainted with relatives of the doctor, Mazoltuv Borukhova, and he has been placed on modified assignment, a police spokesman said.
News & Media
But given the circles that both men moved in, in the Bronx and East Harlem, investigators did not rule out the possibility that they may have been acquainted.
News & Media
I hold to be prostitution in anyone that is not born a slave; but to have been acquainted with such a man as Mr Boswell I would hand down to my posterity as one of the honours of their ancestor.
News & Media
But John, who served as an occasional aide-de-camp to his father, seems to have been acquainted with pretty much all the notable British and American generals and statesmen of World War II.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
42 human-written examples
Axelrod had been acquainted with the chairman of the N.J.S.O.
News & Media
Comey had been acquainted with some of the scandals that had swirled around the Clintons.
News & Media
At the time of her arrest, Hubler along with other journalists and writers in Los Angeles had been acquainted with her.
News & Media
He had been acquainted with James Ujaama, who is accused of setting up a terrorist training camp in America.
News & Media
Now that Jennifer Lopez has been acquainted with the singers on "American Idol," she's going to search for singing talent throughout the Americas.
News & Media
Expert writing Tips
Best practice
Use "have been acquainted" to suggest a formal or initial stage of knowing someone, implying a degree of politeness or professional distance.
Common error
Avoid using "have been acquainted" to describe close, long-term friendships. It's better suited for initial introductions or professional relationships.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "have been acquainted" functions as a stative verb phrase, indicating a state of knowing or being familiar with someone. Ludwig AI examples show its usage in describing relationships that are not deeply intimate, suggesting a formal or initial level of acquaintance.
Frequent in
News & Media
40%
Science
30%
Academia
15%
Less common in
Wiki
5%
Formal & Business
5%
Reference
5%
Ludwig's WRAP-UP
The phrase "have been acquainted" is a useful way to describe a relationship that is more than a brief meeting but less than a close friendship. As Ludwig AI indicates, it is grammatically correct and commonly found in news, scientific, and academic writing. While it is suitable for formal or professional contexts, it should be avoided when describing intimate, long-term relationships. Consider alternatives like "have known" or "are familiar with" depending on the specific context to convey the intended level of familiarity. The phrase's relatively high frequency and authoritative sourcing make it a reliable choice for expressing a moderate level of connection.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
have known
Focuses solely on knowing someone, lacking the nuance of initial introduction.
have been introduced to
Specifically refers to the act of being formally presented, rather than naturally meeting.
have met
Highlights the act of meeting, without implying any continued relationship.
are familiar with
Emphasizes knowledge or understanding, rather than a personal connection.
have crossed paths with
Suggests a brief or incidental encounter, lacking depth.
have had dealings with
Implies a transactional relationship, rather than a personal one.
have interacted with
A broader term covering various forms of engagement, not necessarily personal.
have come into contact with
Focuses on physical or direct interaction, without personal connection.
have a nodding acquaintance with
Suggests a very superficial level of familiarity.
have been in contact with
Implies some form of communication, which is not necessarily acquaintance
FAQs
What does "have been acquainted" mean?
The phrase "have been acquainted" means that two or more people know each other, typically in a not-so-close or formal way. It suggests a less intimate level of knowing someone compared to being friends.
When is it appropriate to use "have been acquainted"?
It is appropriate when describing a relationship that is more than just meeting someone once but less than a close friendship. It's often used in professional settings or when describing past encounters.
What are some alternatives to "have been acquainted"?
You can use alternatives like "have known", "have met", or "are familiar with" depending on the context.
How does "have been acquainted" differ from "have known each other"?
"Have been acquainted" often implies a more formal or less intimate relationship compared to "have known each other", which suggests a deeper connection and longer duration.
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested