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
a clear boundary of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a clear boundary of" is correct and usable in written English.
It can be used when discussing limits, distinctions, or separations between concepts, ideas, or physical spaces. Example: "The study established a clear boundary of responsibility between the two departments to avoid overlap in tasks."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(4)
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
4 human-written examples
There is not a clear boundary of function components in the product.
First, from the aspect of clarity, for federalist states, there is a clear boundary of authority and accountability between the central government and local governments with local citizens' voting and monitoring rights (Tiebout 1956; Xu 2011).
Igarashi et al. (2001) pointed out that there is a clear boundary of the distribution of the interplate earthquakes in this region, which is indicated by the dashed line in all figures in this paper, and no slip is estimated at the plate interface deeper than this border.
Science
Interestingly there was a clear boundary of enzyme distribution in the cortex with lower βgal staining in perirhinal, piriform and entorhinal cortices (arrowheads in Fig. 1).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
From the FWE-adjusted and FDR-adjusted superimposed ER activation maps it was possible to draw a clear boundary between a region of high fingertip specificity and a region of lower fingertip specificity (dashed line in Fig. 3C, D, see Material and Methods section).
Science
Nevertheless, because of the disappearance ofthe MMP-1 1G allele distribution observed in the OSCC cases with a clear boundary under the age of 45 years, the MMP-1 promoter 2G allele should be recognized as an essential genetic precondition for the development of early onset OSCC.
Science
This is partially due to the difficulty of characterization of non-DA neurons in the VTA because of the lack of a clear boundary between the VTA and surrounding nuclei.
Science
The absence of a clear boundary between these structures poses a significant challenge for segmentation.
Furthermore, a clear boundary was observed between areas of initial and late new bone formation.
A recent consensus review of bipolar depression (36) emphasized the gradient between bipolar and unipolar depression and the relative absence of a clear boundary between the two.
Science
Color Doppler ultrasonic examination showed a mass-like echo having a clear boundary and a smooth surface of approximately 1.7 cm × 1.0 cm on the temporal side of the right eye.
Science
Expert writing Tips
Best practice
When using "a clear boundary of", ensure that the context provides specific details about what is being separated or delineated. This helps to avoid ambiguity and strengthens the clarity of your statement.
Common error
Avoid using "a clear boundary of" when the entities being discussed are inherently overlapping or indistinct. In such cases, consider phrases that acknowledge the ambiguity, like "the blurred line between" or "the interconnectedness of."
Source & Trust
83%
Authority and reliability
4.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a clear boundary of" functions as a noun phrase serving to define a specific limit or separation. It is used to establish a distinct demarcation between two or more entities, concepts, or areas. Ludwig supports this function with examples demonstrating its use in various contexts, from legal responsibilities to physical spaces.
Frequent in
Science
75%
News & Media
25%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "a clear boundary of" is a phrase used to indicate a distinct separation between entities, responsibilities, or areas. According to Ludwig, this phrase is grammatically correct and suitable for various contexts, particularly science and news. While not exceedingly common, it provides a valuable tool for ensuring clarity and preventing ambiguity in communication. When employing this phrase, ensure the context explicitly defines what is being separated. Alternatives like "a well-defined limit of" or "a distinct border of" can offer nuanced variations, tailoring your message for maximum impact. The best practice is to use it in contexts that require specific details about the delineation, and to avoid using it when the entities lack well-defined distinctions.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a well-defined limit of
Replaces "clear" with "well-defined" and "boundary" with "limit" maintaining a similar meaning but emphasizing a defined restriction.
a distinct border of
Substitutes "boundary" with "border", focusing on a physical or figurative line of separation that is easily distinguishable.
a precise demarcation of
Replaces "clear boundary" with "precise demarcation" indicating a more exact and formal separation.
a sharp delineation of
Uses "sharp delineation" to highlight a clear and distinct separation, often used in more technical contexts.
a defined perimeter of
Replaces "boundary" with "perimeter" which emphasizes the outer limit or extent of something.
an explicit limit of
Uses "explicit limit" which means something is clearly stated, leaving no room for interpretation about where something ends.
a recognizable division of
Shifts the focus to the act of dividing and recognizing the separation rather than the boundary itself.
a visible separation of
Highlights the aspect of being able to see the boundary, emphasizing physical distinctness.
a certain limit of
Uses "certain limit" to describe a specific restriction point which is pre-defined.
a marked distinction of
Emphasizes that the separation is not just clear, but also noticeable and intentional, as if it were actively marked.
FAQs
How can I use "a clear boundary of" in a sentence?
Use "a clear boundary of" to indicate a distinct separation or limit between two things. For example, "The contract established "a clear boundary of" responsibility between the project teams".
What are some alternatives to "a clear boundary of"?
Alternatives include phrases like "a well-defined limit of", "a distinct border of", or "a precise demarcation of", depending on the specific nuance you want to convey.
When is it inappropriate to use "a clear boundary of"?
It's inappropriate when the items you're discussing don't have a definite separation or when the distinction is vague or ambiguous. In such cases, consider alternatives like "a blurred line" or "an indistinct separation".
What's the difference between ""a clear boundary of"" and "a distinct border of"?
"A clear boundary of" is a more general term for any separation, while "a distinct border of" often implies a more physical or geographic separation.
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
83%
Authority and reliability
4.4/5
Expert rating
Real-world application tested