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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
substantial line
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "substantial line" is correct and usable in written English.
It can be used to refer to a significant or important boundary, distinction, or argument in a discussion or analysis. Example: "The report draws a substantial line between the effects of climate change and economic policy."
✓ Grammatically correct
Science
News & Media
Formal & Business
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
5 human-written examples
Yesterday, in voting for hospitals to be permitted to sell half their (our) beds to medi-business, you made clear that for you the NHS line is a rather less substantial line to be crossed whenever politically expeditious.
News & Media
The only other substantial line item cost was transport, which accounted for 3% of the total cost of implementation.
Indeed, the HSQC spectrum of Gemin295 280 shows substantial line broadening and a loss of peak dispersion, indicating a poorly defined structure when SMN is not bound.
Science
A substantial line of evidence implicates PfCK2 in Rh2b phosphorylation: Ser phosphorylation is sensitive to low amounts of heparin [ 36] and to TBCA treatment, a specific CK2 inhibitor [ 45].
Science
The lack of observable NMR signals for the four aromatic residues (F164Y165H166Y167) of IsdBN1 likely results from substantial line broadening in the NMR spectrum which is most likely due to chemical exchange on an intermediate (ms) time scale, reflecting the intrinsic flexibility of L2 residues in the unbound solution state of IsdBN1, similar to its homologue IsdHN1.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
A doorman comes into play on Thursdays and weekends, when substantial lines amass by 11 p.m.
News & Media
Once inside, perhaps not far from the fireplace, you can take your time getting your boots on because there will be no substantial lines at the lifts, which are just out the lodge window.
News & Media
Although Medicare spending is, by far, the fastest growing and most substantial line-item in the government's growing deficit, make no mistake: failing to support our elderly would be even more costly.
News & Media
The magnetic-field-dependence of these elevated R2 values indicates substantial line-broadening arising from motion in the sub-millisecond timeframe.
Science
Substantial lines of evidence controversially suggest that congenital and infantile hemangiomas originate from metastatic spread of placental chorangiomas [ 16– 20], creating a possibility in which the etiology of some childhood hemangiomas (at least in their earliest stages) may be more similar to metastatic tumors than benign tumors.
Science
This usually results in slightly crisper, more substantial lines that you can learn to identify.
Wiki
Expert writing Tips
Best practice
Use "substantial line" to denote a significant boundary or distinction, whether in abstract concepts or physical contexts. Be precise in what the line separates or represents.
Common error
Avoid using "substantial line" when a simple "significant aspect" or "important factor" would suffice. The phrase implies a division or boundary, so ensure this is clear in your writing.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "substantial line" functions primarily as a noun phrase, where "substantial" modifies the noun "line". It describes a boundary, division, or distinction that is significant or considerable. As confirmed by Ludwig, this phrase is correct and usable in written English.
Frequent in
Science
43%
News & Media
43%
Formal & Business
14%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "substantial line" is a grammatically sound and usable English phrase used to describe a significant boundary, division, or distinction. While not exceedingly common, it appears across diverse fields, including science, news, and business. Ludwig AI confirms its correctness and provides examples of its usage in context. Alternative phrases such as "significant boundary" or "considerable distinction" can be used depending on the nuance desired. When using the phrase, ensure it accurately reflects a notable demarcation or separation.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
substantial dividing line
Reiterates the divisive nature of the 'line' with an emphasis on it being substantial.
significant boundary
Emphasizes the boundary aspect with a focus on its importance.
considerable distinction
Highlights the notable difference between two things.
material demarcation
Focuses on a tangible or significant division.
critical aspect
Highlights the crucial nature of a specific aspect.
significant factor
Shifts the focus to the importance of a particular element.
important consideration
Highlights the weight and relevance of something being considered.
major component
Emphasizes that something is big, important and part of a bigger thing.
noteworthy element
Focuses on an element that is worth paying attention to.
considerable item
Focuses on how the item is big or important.
FAQs
How can I use "substantial line" in a sentence?
You can use "substantial line" to indicate a significant division or distinction, for example, "The report draws a "substantial line" between the effects of climate change and economic policy".
What's a good alternative to "substantial line"?
Alternatives include "significant boundary", "considerable distinction", or "material demarcation", depending on the specific context.
Is it correct to use "substantial line" in formal writing?
Yes, "substantial line" is appropriate for formal writing, especially when discussing clear distinctions or demarcations. The phrase is found in both academic and professional contexts.
What does "substantial line" typically refer to?
It commonly refers to a significant boundary, dividing point, or a clear distinction between two or more things. It can also describe a key argument or piece of evidence.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested