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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
underline by
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "underline by" is not correct in English.
Did you mean "underlined by"? If this is the case, you can use it to indicate that something is emphasized or highlighted by a particular factor or element. Example: "The success of the project was underlined by the team's dedication and hard work."
⚠ May contain grammatical issues
Science
Wiki
News & Media
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
3 human-written examples
This is consistent with low mobility of workers, underline by Wasmer (2006), Rupert and Wasmer (2007) and Lemoine and Wasmer (2010), and the theory of thin labor markets developed and summarized in Manning (2003a).
An obvious correlation between the high-amplitude magnetic anomalies and areas underline by the Upper Carboniferous-Lower Permian magmatic rocks (c.f. Figures 4 and 6) indicates an upper-crustal origin for the positive magnetic anomalies over the western part of the magnetic map in Figure 6.
Science
Create the amount of space you want to underline by tabbing over as many times as is appropriate.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
That assertion is underlined by her appearance.
News & Media
"[For] reasons that were underlined by 10 European democracies".
News & Media
This strategy will be underlined by the forthcoming vote.
News & Media
A direct hit of fruity perfume underlined by wet dog.
News & Media
It's also underlined by attempts at pragmatic budget savings.
News & Media
Decadence is good, especially when underlined by simplicity.
News & Media
The symbolism was underlined by the team's vulnerability.
News & Media
The vintage vibe was underlined by a preoccupation with space.
News & Media
Expert writing Tips
Best practice
Avoid using "underline by". The correct and commonly accepted phrasing is "underlined by", "emphasized by", or "highlighted by".
Common error
A frequent mistake is using the base form "underline" instead of the past participle "underlined" when indicating that something is emphasized or highlighted. Always use "underlined by" to ensure grammatical accuracy.
Source & Trust
85%
Authority and reliability
2.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "underline by" functions incorrectly as a prepositional phrase. The verb "underline" requires the past participle form "underlined" to properly convey that something is being emphasized. Ludwig AI flags it as incorrect, further validating this point.
Frequent in
News & Media
33%
Science
33%
Wiki
33%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "underline by" is grammatically incorrect. The correct form is "underlined by", which serves to indicate emphasis or highlighting. As Ludwig AI points out, using the base form "underline" in this context is a common error that should be avoided, especially in formal writing. Alternatives like "emphasized by" or "highlighted by" are also suitable. While the phrase appears in a few sources, its incorrectness impacts its usability and credibility.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
emphasized by
Changes the verb to "emphasize", providing a more grammatically accepted way to show something is given importance.
highlighted by
Replaces "underline" with "highlight", suggesting a visual or figurative emphasis on something.
underscored by
Substitutes "underline" with "underscore", another term synonymous with emphasizing or highlighting something.
brought out by
Uses the phrasal verb "bring out" to indicate something is made more noticeable or prominent.
made clear by
Indicates that something is clarified or made evident by a particular factor.
accentuated by
Replaces "underline" with "accentuate", implying that something is made more noticeable or prominent.
stressed by
Uses "stress" to suggest that something is given particular importance or emphasis.
reinforced by
Indicates that something is strengthened or supported by another factor.
demonstrated by
Suggests that something is shown or proven by a particular factor or example.
illustrated by
Implies that something is explained or clarified through examples or instances.
FAQs
What is the correct way to say something is emphasized by something else?
The correct way to indicate that something is emphasized by another element is to use phrases like "underlined by", "emphasized by", or "highlighted by".
Is "underline by" grammatically correct?
No, "underline by" is not grammatically correct. The past participle form "underlined by" should be used instead.
Can I use "underline by" in formal writing?
No, avoid using "underline by" in formal writing. Opt for grammatically correct alternatives such as "underlined by" or "highlighted by".
What is the difference between "underline by" and "underlined by"?
"Underline by" is grammatically incorrect. "Underlined by" is the correct past participle form, indicating that something has been emphasized or highlighted.
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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
2.5/5
Expert rating
Real-world application tested