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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
only really know
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "only really know" is correct and usable in written English.
It can be used to express a limited or nuanced understanding of something, often implying that the knowledge is not complete or absolute. Example: "I only really know the basics of programming, but I'm eager to learn more."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(5)
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
"In truth, you only really know when you've spent too little," he adds.
News & Media
I only really know what was done to me, and what I have done.
News & Media
I do know she sings but I only really know her from the athletics side".
News & Media
But sometimes, it seems, I only really know what I think when I've heard what I've said".
News & Media
"It's funny, you only really know what someone thinks of you when you know what lies they've told you".
News & Media
In medicine, we can only really know a disease once we have a test that can reliably identify it.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
41 human-written examples
"I only really knew we had won when Nasser started pumping out the nonsense that we had American and British help".
News & Media
He only really knew that Blind Date was going to be a success when he was walking along the sea front at Worthing with her.
News & Media
She might be more chilled out now than when she was 10, but her run of hits – she has only really known chart success – can make her edgy.
News & Media
I only really knew about Lem because of Solaris, the masterful (and determinedly laugh-free) film by the great Andrei Tarkovsky, and the rather ponderous translation of the source novel that found its way to the UK in the 1970s.
News & Media
Born in Kabul but having lived in London for most of my life, I only really knew Afghanistan from what I'd read and seen in the papers – and the giggling ladies, big Disney princess frocks and glitter lipstick did not fit with that.
News & Media
Expert writing Tips
Best practice
Use "only really know" to express a qualified understanding or to limit the scope of your knowledge. For example, "I only really know the basics of cooking, but I'm learning more recipes."
Common error
Avoid using "only really know" when you actually possess comprehensive knowledge of a subject. It's best to state your level of understanding accurately to avoid misrepresentation.
Source & Trust
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "only really know" functions as a qualifier to a verb, indicating the extent or limit of one's knowledge or understanding. Ludwig's examples illustrate its use in expressing a nuanced perspective.
Frequent in
News & Media
65%
Science
20%
Wiki
15%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "only really know" is a common and grammatically correct way to express a limited or qualified understanding. As Ludwig AI confirms, it's frequently found in news and media sources, serving to moderate claims of knowledge and acknowledge the boundaries of understanding. Related phrases, like ""just know"" or "have a limited grasp of", can be used as alternatives to provide a similar meaning. When using this phrase, it's important to accurately represent your level of understanding to avoid misinterpretation.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
just have a basic understanding of
Emphasizes the fundamental nature of the knowledge possessed.
partially understand
Indicates a degree of understanding that is not complete.
have a limited grasp of
Highlights the restricted nature of one's understanding.
have a preliminary understanding of
Suggests an initial and incomplete level of knowledge.
am only vaguely aware of
Suggests a superficial level of knowledge.
am not fully acquainted with
Indicates a lack of complete familiarity.
have a tenuous understanding of
Emphasizes the fragility or uncertainty of the knowledge.
have a superficial knowledge of
Implies a shallow level of understanding.
know only the surface of
Highlights a lack of in-depth understanding.
scarcely know
Indicates a very limited or almost non-existent understanding.
FAQs
How can I use "only really know" in a sentence?
You can use "only really know" to indicate a limited or partial understanding of something. For example, "I only really know about the first season of that show" or "We only really know about Socrates through his students".
What's a simple alternative to "only really know"?
Alternatives include "just know", "simply know", or "barely know", depending on the nuance you want to convey.
Is it grammatically correct to say "only really know"?
Yes, "only really know" is grammatically correct. It's a common construction used to express a qualified or limited understanding as confirmed by Ludwig AI.
What is the difference between "only really know" and "think I know"?
"Only really know" suggests a degree of certainty within a limited scope, while "think I know" indicates a belief or assumption that may not be entirely accurate. "Only really know" implies that you have some factual information, where "think I know" simply implies that you believe you know something.
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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
4.3/5
Expert rating
Real-world application tested