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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
if known
Grammar usage guide and real-world examplesUSAGE SUMMARY
"if known" is a valid phrase in written English.
You can use it to indicate that something is only known in certain cases or situations. For example, "Please provide the date of birth for the applicant, if known."
✓ Grammatically correct
Science
News & Media
Wiki
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
60 human-written examples
If known, give the sort code and account number.
News & Media
Bjorn is popular, if known for having a temper.
News & Media
The names of the dead, if known, are written in a loose-leaf notebook.
News & Media
Those under investigation by law enforcement anywhere must disclose this if known.
News & Media
[If known positive before incarceration] .
Science
Third, subsistent Being, if known, would be intelligible per se.
Science
In the past, the existence and source of such information was unknown and, if known, was not always consulted.
One cloud type is depicted for each of three possible cloud layers, if known.
Wiki
The choice of hierarchical levels should be made to emphasize dynamical relationships, if known.
Wiki
Transcripts will be discussed by gene name if known, or by bovine locus designation.
Science
If known, the actual cost was included.
Science
Expert writing Tips
Best practice
Use "if known" to provide optional information without disrupting the flow of the sentence. It's helpful when the information isn't always available or relevant.
Common error
Avoid structuring sentences where the "if known" clause is essential for understanding. Ensure the sentence makes sense even if the information is omitted.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "if known" functions as a conditional adverbial phrase, modifying a verb or clause by introducing a condition related to knowledge or awareness. It specifies that the action or state described is contingent upon whether the information is available. Ludwig AI confirms its grammatical correctness.
Frequent in
Science
62%
News & Media
15%
Wiki
8%
Less common in
Formal & Business
3%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "if known" is a versatile and grammatically sound phrase used to indicate that information is conditional on being known or available. Ludwig AI confirms its correctness and broad applicability. It appears frequently in scientific and news contexts. When writing, use "if known" to provide optional details without disrupting the flow, but ensure the sentence remains coherent if the information is omitted.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
when known
Focuses on the timing or instance of knowledge rather than the possibility.
if available
Suggests the information might exist but isn't guaranteed.
where applicable
Indicates relevance depends on specific cases.
if specified
Highlights that the information needs to be explicitly stated.
if identified
Emphasizes the act of discovering or recognizing something.
should it be known
More formal and emphasizes uncertainty.
in the event that it's known
A more verbose and cautious phrasing.
to the extent known
Implies there might be partial knowledge.
as far as is known
Highlights the limits of current knowledge.
contingent on knowledge
Focuses on the dependency of something on having knowledge.
FAQs
How can I use "if known" in a sentence?
Use "if known" to add optional details. For instance, "Please provide the model number, "if known"."
What's a good alternative to "if known"?
Alternatives include "when known", "if available", or "where applicable", depending on the nuance you want to convey.
Is it better to omit "if known" if the information is likely unknown?
If the information is almost certainly unavailable, it's often better to omit the phrase to avoid unnecessary wording. However, if there's a chance it might be known, including "if known" is appropriate.
How does "if known" compare to "as far as is known"?
"If known" simply indicates that information should be provided if it exists. "As far as is known" suggests the information represents the current state of understanding, which may be incomplete.
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested