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
completely familiar
Grammar usage guide and real-world examplesUSAGE SUMMARY
"completely familiar" is correct and usable in written English.
You can use it when you want to emphasize that something is very familiar or well-known. For example: "The songs from the 60s are completely familiar to me."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(18)
intimately acquainted
thoroughly versed
well-versed
intimately familiar
entirely conversant
thoroughly acquainted
thoroughly conversant
fully cognizant
perfectly aware
fully familiar
completely comfortable
perfectly familiar
wholly familiar
utterly familiar
entirely familiar
completely knowledgeable
thoroughly familiar
completely commonplace
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
57 human-written examples
For us, Jenner's account is completely familiar, and in its familiarity, thrilling to hear made public before such a broad audience.
News & Media
The familiarity rating task followed this; subjects were asked to hit a number key as soon as possible to rate the target picture on a 7 point scale of familiarity (1 = totally unacquainted, 7 = completely familiar).
Science
It's just not a completely familiar one.
News & Media
"It's completely familiar," Ms. Chehlaoui agreed.
News & Media
The installers should be completely familiar with the equipment and all the information regarding its installation.
Yet I'm still pondering the nature of e-reading, which somehow refuses to become completely familiar.
News & Media
By now, of course, 2010 feels like a completely familiar, totally used-up year.
News & Media
Also, he said, scrutinizing the serpentine form, "I like that it's not completely familiar".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
3 human-written examples
He waited for the image to dissolve, but before it did completely a familiar voice said, "Well, look who it is".
News & Media
I mainly try to avoid subjects that have already been hammered, and instead seek out people, places, animals and landscapes that aren't completely over-familiar.
News & Media
Similarly, Eimer [ 28] demonstrated robust face-specific N170 responses, but such responses were completely insensitive to familiar vs. unfamiliar faces, even though such familiarity effects were evident later in the ERP response.
Expert writing Tips
Best practice
Use "completely familiar" to assure your audience of your or someone else's deep understanding and comfort with a subject.
Common error
While "completely familiar" is a valid phrase, it may sound overly formal in casual conversation. Consider using alternatives like "very familiar" or "really know" for a more relaxed tone.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "completely familiar" functions as an adjective phrase, modifying a noun to describe a state of thorough knowledge, understanding, or recognition. Ludwig shows many examples where this phrase is used to emphasize someone's deep understanding of a subject.
Frequent in
News & Media
50%
Science
25%
Academia
15%
Less common in
Wiki
5%
Formal & Business
3%
Reference
2%
Ludwig's WRAP-UP
In summary, "completely familiar" is a versatile adjective phrase used to describe thorough knowledge or understanding. As Ludwig AI confirms, the phrase is grammatically correct and widely employed. While it finds frequent use in contexts such as news, media, science, and academia, its slightly formal tone warrants consideration in casual conversation. Related phrases like "intimately acquainted" and "thoroughly versed" can provide alternative options depending on the desired nuance. Employ "completely familiar" when you aim to assert deep understanding and comfort with a subject, bearing in mind the context and audience.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
intimately familiar
Reorders the words to emphasize the deepness of the familiarity.
well-versed
Similar to "thoroughly versed", this is a more concise way to express expertise.
entirely conversant
Replaces "familiar" with "conversant", emphasizing thorough knowledge and understanding.
thoroughly versed
Replaces "familiar" with "versed", highlighting expertise and deep understanding.
intimately acquainted
Replaces "familiar" with "acquainted", suggesting a close and personal understanding.
thoroughly acquainted
Similar to "intimately acquainted" but less personal and more formal.
thoroughly conversant
This variant combines the concepts of thoroughness and detailed knowledge.
fully cognizant
Replaces "familiar" with "cognizant", emphasizing awareness and understanding.
perfectly aware
Focuses on awareness rather than familiarity, suggesting a clear understanding.
entirely comfortable with
Shifts the focus to comfort and ease rather than just familiarity.
FAQs
How can I use "completely familiar" in a sentence?
You can use "completely familiar" to describe a state of thorough knowledge or understanding. For example: "The installers should be "completely familiar" with the equipment and all the information regarding its installation."
What are some alternatives to "completely familiar"?
Alternatives to "completely familiar" include "intimately acquainted", "thoroughly versed", or "well-versed", depending on the desired nuance.
Is it better to say "completely familiar" or "very familiar"?
"Completely familiar" emphasizes a greater degree of understanding and expertise compared to "very familiar". The best choice depends on the context and the level of emphasis you want to convey.
What does "completely familiar" imply about someone's knowledge?
"Completely familiar" suggests that someone has a deep and comprehensive understanding of a subject, to the point where they are very comfortable and confident in their knowledge.
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