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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
underlining idea
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "underlining idea" is not correct; it should be "underlying idea." You can use "underlying idea" when discussing the fundamental concept or principle that supports or informs a larger argument or theme.
Example: "The underlying idea of the novel revolves around the struggle for identity in a changing society."
⚠ May contain grammatical issues
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
1 human-written examples
The underlining idea is to pick points that are spaced apart, which hit all large enough disks.
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
When the time has run out, look over what you have written and circle or underline ideas that you like or that you think that might be useful for your project.
Wiki
Many tutors also opt to present awards at the end of the year, underlining the idea that form time is a purposeful, positive place where success is recognised.
News & Media
Best of all, though, it would give pensioners an honoured category of their own, underlining the idea of the state pension as neither a privilege nor a handout, but an earned entitlement – and a pretty ungenerous one at that.
News & Media
Underlining the idea that the Tucker Gala and the Met are now in competition, two of the evening's biggest draws aren't appearing across the plaza this season at all: Aprile Millo and Salvatore Licitra.
News & Media
And potentially underlining the idea that a fighter is always only one punch away from peril, it wasn't until Taylor suffered a hard knockdown against Caleb Truax in April of 2012 that his sanity appeared to truly disintegrate.
News & Media
The last few months have seen policy changes that encourage school pupils to assess £27,000 fees against an implicitly expected graduate salary premium, underlining the idea that university is primarily an employment-training scheme that can be assessed on an income and expenditure basis.
News & Media
The LopT effector protein of P. luminescens can be injected by Y. enterocolitica into mammal cells [ 86], underlining the idea that both T3SS act similarly.
Science
Moreover, such mechanisms may also account for highly specific interactions, even if the two species did co-exist in the wild, underlining the idea that past co-evolutionary events cannot be reliably deduced from the observation of specific interactions without further information (e.g. historical records of co-existence in nature or congruent phylogenies of host and parasite strains).
Science
The underline idea is that entities can join the system dynamically, publish their functionalities through a set of process fragments that can be used by other entities to interoperate, discover fragments offered by the other entities, and use them to automatically refine their own processes.
It also underlines the idea that this a past event – something complete and therefore successful.
News & Media
Expert writing Tips
Best practice
Prefer using "underlying idea" to refer to a foundational concept. For active emphasis, use verbs like "highlight", "emphasize", or "underscore" instead of "underlining."
Common error
Avoid using "underlining" when you mean "underlying". "Underlying" refers to something fundamental, while "underlining" means drawing a line beneath something or emphasizing it. To emphasize an idea, consider verbs like "highlight", "underscore", or "emphasize".
Source & Trust
77%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "underlining idea" attempts to function as a noun phrase, where "underlining" modifies "idea". However, it is grammatically incorrect. The correct form to express a foundational concept is "underlying idea". Ludwig AI points out that the intended meaning involves a base concept, not the act of emphasizing an idea.
Frequent in
Science
33%
News & Media
33%
Wiki
33%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "underlining idea" is grammatically incorrect. According to Ludwig AI, the correct phrase to use when referring to a foundational concept is "underlying idea". This correction ensures clarity and precision in your writing. While sources like The New York Times and The Guardian may contain the incorrect phrase, adhering to proper grammar enhances credibility. Alternatives such as "core concept" or "fundamental principle" can also be used to convey the intended meaning effectively. Remember to emphasize ideas with verbs like "highlight" or "underscore" rather than the misnomer "underlining".
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
underlying concept
Replaces "idea" with "concept", emphasizing the conceptual nature.
primary thought
Replaces "idea" with "thought", keeping the meaning very close.
key notion
Highlights the importance of the idea, using 'notion' as a synonym.
basic premise
Substitutes with a more foundational term, suggesting a fundamental assumption.
fundamental principle
Emphasizes the core rule or belief, shifting from a general 'idea'.
central theme
Focuses on the main subject or topic being emphasized.
core belief
Highlights a strongly held conviction as the focus.
main point
Shifts the focus to the most important part of an argument or discussion.
overarching theme
Emphasizes that the idea spans across an entire work or discussion.
driving force
Suggests the idea is an impetus or motivator.
FAQs
What is the correct way to say "underlining idea"?
The correct phrase is "underlying idea", which refers to the basic or fundamental concept. "Underlining" is a verb that means to draw a line under something or to emphasize it, so it doesn't fit this context.
When should I use "underlying idea"?
Use "underlying idea" when you want to refer to the fundamental concept or principle on which something is based. For example, "The "underlying idea" of the theory is that all matter is energy".
What are some alternatives to "underlying idea"?
Some alternatives include "core concept", "basic premise", or "fundamental principle". These phrases all convey the sense of a foundational or essential concept.
How can I emphasize an idea in my writing?
Instead of using the incorrect phrase "underlining idea", you can emphasize an idea by using verbs like "highlight", "underscore", or "emphasize". For example, "The author wants to emphasize the importance of education."
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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
77%
Authority and reliability
2.8/5
Expert rating
Real-world application tested