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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
unknown passage
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "unknown passage" is correct and usable in written English.
It can be used to refer to a section of text or a quote that is not identified or recognized. Example: "The researcher stumbled upon an unknown passage in the manuscript that shed new light on the author's intentions."
✓ Grammatically correct
Science
News & Media
Wiki
Alternative expressions(2)
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
2 human-written examples
Restoration of Apethorpe Hall, undertaken in 2004 08, revealed a previously unknown passage linking the bedchambers of James and Villiers.
Wiki
RNA was extracted from the Vero cell culture supernatant after a single passage, the original sample (no passage), or isolates with an unknown passage history by using the RNeasy kit (QIAGEN) as directed by the manufacturer.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
STM allows Humanities scholars to discover unknown passages from the vast sea of works that Moretti calls the "great unread" and to significantly increase the researcher's ability to discuss aspects of influence and the development of intellectual movements across a broader swath of the literary landscape.
Science
Cartography was subject to other pressures: mapmakers would mark in Protestant regions as Catholic ones, or vice versa, as fortunes shifted or to please their clients; with navigators in mind, they might insert a hitherto unknown sea passage into an uncharted landmass.Mercator was not above this sort of thing.
News & Media
Use of a new asymptotic approximation is then made in order to design a numerical algorithm of predictor corrector type to solve the integral equation in the unknown first-passage-time probability density function.
Science
HepG2 cells (passage unknown) were maintained in DMEM (Lonza) supplemented with 10% FBS and 1% P/S.
Science
Earlier serum samples were also tested for Nt antibodies to SLEV (TBH-28 strain, passage history unknown).
Science
An N-terminal dileucine motif targets the MFSD8 protein to lysosomal membranes [ 38, 39] where it may control the passage of unknown substrates into or out of the lysosomes.
Science
Better to give yourself up to the theatrical experience of Okada's passage into the unknown.
News & Media
So, hard as it is, we have to learn to welcome that little death and learn to see it as the narrow, dark passage to the unknown, glorious fulfillment of our own creative work.
News & Media
A viscous mud of unknown depth lies in many passages, holding water from past floods.
News & Media
Expert writing Tips
Best practice
When using "unknown passage", ensure the context clearly indicates what makes the passage 'unknown' – is it the author, the meaning, its origin, or its location within a larger work? Provide enough context for clarity.
Common error
Avoid using "unknown passage" simply as a placeholder when more specific language would be appropriate. Instead of saying 'the meaning of this section is an unknown passage', consider stating what is known and pinpointing the specific aspects that remain unclear.
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "unknown passage" functions primarily as a noun phrase, often serving as the object of a verb or the subject of a clause. It refers to a section of text or space that is not identified, recognized, or understood. As Ludwig AI confirms, it's usable in written English.
Frequent in
Science
30%
News & Media
30%
Wiki
20%
Less common in
Formal & Business
10%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "unknown passage" is a grammatically correct and usable term that describes a section of text or space lacking clear identification, origin, or meaning. As Ludwig AI illustrates, it is most frequently employed in scientific, news media and wiki contexts, maintaining a neutral to formal tone. When employing this phrase, prioritize providing clear context to specify what exactly renders the passage 'unknown'. While alternatives like "unidentified section" or "unrecognized excerpt" exist, "unknown passage" succinctly conveys the essence of something undiscovered or unexplained.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
unidentified section
Focuses on the lack of identification of the passage.
unrecognized excerpt
Emphasizes that the passage is not recognized or acknowledged.
undisclosed excerpt
Highlights that the passage has not been revealed or made public.
mysterious segment
Suggests an element of mystery or intrigue surrounding the passage.
unrevealed portion
Emphasizes that the passage has not been unveiled or disclosed.
obscure section
Highlights the lack of clarity or understanding of the passage.
unexplored text
Focuses on the fact that the passage has not been thoroughly examined or analyzed.
uncharted part
Implies that the passage is unfamiliar and has not been mapped or documented.
unfamiliar segment
Highlights the lack of familiarity or prior knowledge of the passage.
hidden fragment
Suggests the passage is concealed or difficult to find.
FAQs
How can I use "unknown passage" in a sentence?
You can use "unknown passage" to refer to a section of text with unclear origins or meaning. For example: "The historian discovered an "unknown passage" in the ancient manuscript, the author of which remains a mystery."
What are some alternatives to "unknown passage"?
Depending on the specific meaning you want to convey, alternatives to "unknown passage" include "unidentified section", "unrecognized excerpt", or "obscure section".
Is it appropriate to use "unknown passage" in formal writing?
Yes, "unknown passage" is suitable for formal writing, particularly in academic or research contexts. However, ensure that the context provides sufficient clarity about what makes the passage 'unknown'.
How does "unknown passage" differ from "uncharted territory" when describing a text?
"Unknown passage" refers specifically to a section of text that is not recognized or understood. "Uncharted territory", on the other hand, is a broader metaphor suggesting that the overall subject or topic is unexplored. You might encounter an "unknown passage" while exploring "uncharted territory".
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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
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested