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
they were acquainted
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "they were acquainted" is correct and usable in written English.
It can be used to indicate that two or more people have met or know each other, typically in a formal or polite context. Example: "Although they were acquainted from previous meetings, they had never had a chance to talk one-on-one."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Wiki
Alternative expressions(1)
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
19 human-written examples
They were acquainted with Bourdain and knew him as the embodiment of wit, smarts and cool.
News & Media
They were acquainted with each other while they were at the Yale School of Music.
News & Media
But they gave only their opinions and consequently did not testify about facts with which they were acquainted.
Encyclopedias
In the first pentathlon, in 1912, the athletes were allowed to use horses with which they were acquainted.
News & Media
Mr. Rivera said they were acquainted with their attackers, whom he described as newcomers to the business.
News & Media
The study physicians performed one examination each on a patient with a fracture to verify that they were acquainted with the method.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
41 human-written examples
They are acquainted because Mr. Bloomberg is the chairman of the trustees of Johns Hopkins University there.
News & Media
"From what we are told, they are acquainted," Chief Heider said.
News & Media
Others will get it after a while, especially if they are acquainted with Mr. Kelly's early painting and sculpture.
News & Media
Mr. Ivanov and Mr. Putin have said they are acquainted from work in the Leningrad office of the K.G.B. in the 1980s.
News & Media
When they are acquainted with the judge's proclivities, viewers can better understand why certain pieces in the competition made the cut.
News & Media
Expert writing Tips
Best practice
When using "they were acquainted", consider the context to ensure it accurately reflects the level of familiarity between the individuals. It's more formal than "they knew each other".
Common error
Avoid using "they were acquainted" in informal or casual contexts. It can sound overly formal or stilted when a simpler phrase like "they knew each other" would be more appropriate.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they were acquainted" functions as a statement of familiarity between two or more individuals. Ludwig AI confirms its usage in various contexts. It indicates a level of knowing each other without implying a deep relationship.
Frequent in
News & Media
41%
Science
37%
Wiki
10%
Less common in
Encyclopedias
6%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "they were acquainted" is a grammatically sound and commonly used expression to indicate that people know each other, albeit in a somewhat formal way. As shown by Ludwig, it appears frequently in News & Media and Scientific contexts, suggesting its suitability for neutral to formal registers. When choosing this phrase, consider the context to ensure it accurately reflects the intended level of familiarity. For less formal settings, consider "they knew each other". The analysis concludes that while grammatically correct, it's essential to use this phrase judiciously to avoid sounding overly formal.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
they knew each other
Indicates a general awareness and recognition between individuals, implying some level of interaction or shared knowledge. The focus is on mutual knowledge.
they were familiar with each other
Suggests a comfortable understanding or awareness of each other's traits, habits, or backgrounds, implying a closer connection than just acquaintance.
they had met before
Specifies that the individuals had a prior encounter, but does not necessarily imply ongoing familiarity or a deep connection.
they were introduced
Highlights the act of initial introduction, suggesting a starting point of acquaintance but not necessarily a developed relationship.
they had crossed paths
Indicates a brief or incidental encounter, suggesting a casual level of acquaintance without a strong or lasting connection.
they were on speaking terms
Implies a basic level of communication and civility between individuals, but not necessarily a close or friendly relationship.
they had a nodding acquaintance
Suggests a very superficial level of recognition, often limited to a simple greeting or acknowledgment without further interaction.
they were known to each other
Emphasizes the state of being recognized or identified by one another, possibly without direct interaction or personal knowledge.
they had a professional relationship
Highlights the nature of their acquaintance that is tied to a work environment or a shared professional field.
they were conversant
Implies a capacity for exchanging thoughts or opinions with each other, often suggesting shared understanding or expertise.
FAQs
What does "they were acquainted" mean?
The phrase "they were acquainted" means that two or more people have met or know each other, often implying a formal or not particularly close relationship.
When is it appropriate to use "they were acquainted"?
It's appropriate in formal or professional contexts when you want to indicate a level of familiarity without implying a close friendship. It suggests they "knew each other", but perhaps not well.
What are some alternatives to "they were acquainted"?
Alternatives include "they knew each other", "they had met", or "they were familiar with each other". The best choice depends on the specific context and the level of formality you want to convey.
Is "they were acquainted" more formal than "they knew each other"?
Yes, "they were acquainted" is generally considered more formal. "They "knew each other"" is a more common and neutral way to express that two people have met.
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