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
underlined in red
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "underlined in red" is correct and usable in written English.
It is often used to draw attention to specific words in a sentence, or to draw attention to a sentence or a passage that is particularly important. For example: "The phrase 'underlined in red' is important to remember."
✓ Grammatically correct
News & Media
Academia
Science
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
37 human-written examples
Notebooks should be kept clean and tidy i.e. red margin down the left hand side, written in blue biro, date in the top left hand corner, subject heading at the top and underlined, anything that is underlined should be underlined in red biro.
Wiki
You can spell check wikiHow articles by going to Advanced Editing then clicking on the second button on the top which shows a red, underlined S. When you click any misspelled word will be underlined in red, and you can click on it and see if it has the correct spelling.
Wiki
His name and yardage were underlined in red.
News & Media
Numerous capitals stroked in red; rubrics throughout; explicits underlined in red.
Academia
The royals' names are recorded in one of his blue-jacketed log-books, underlined in red.
News & Media
The last five words of the sentence were underlined in red pen.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
23 human-written examples
Paragraph marks, initial strokes and underlining in red; rubrics added sporadically.
Academia
Finally, the justices metaphorically underline in red ink, juries are still free to infer that someone was involved in a joint enterprise if the evidence clearly shows it, such as "weight of numbers in a combined attack".
News & Media
One moment The Deadline is many happy turns of the diary page away, and then suddenly, there it is, right on the open page, underlined forcibly in red pen.
News & Media
All P. falciparum sequences predicted in this study are underlined in Table 1 and shown in red in Fig. 1.
Science
It read, simply, "Sag Harbor" in big, bold, rounded Art Deco letters inlaid with red neon underlined in blue.
News & Media
Expert writing Tips
Best practice
Use "underlined in red" to draw immediate attention to critical information, errors, or important points in documents and presentations.
Common error
Avoid excessive use of "underlined in red", as it can diminish the impact of truly important elements and make the document appear cluttered and unprofessional.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "underlined in red" functions as a descriptive adjective phrase, modifying a noun (e.g., word, passage, text) by specifying its visual attribute. It indicates that something has been emphasized with a red underline. Ludwig AI confirms the phrase is correct and usable.
Frequent in
News & Media
32%
Academia
27%
Science
24%
Less common in
Wiki
11%
Formal & Business
3%
Reference
3%
Ludwig's WRAP-UP
The phrase "underlined in red" is a versatile and commonly used descriptive phrase that emphasizes textual elements. Functioning as an adjective phrase, it draws attention to specific content, marking it for importance, errors, or required action. Ludwig AI confirms its correctness. Its neutral register makes it appropriate for various contexts, including news, academic writing, and technical documentation. While the phrase is commonly used, avoiding overuse can help maintain its impact.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
with a red underline
This phrase breaks down the action and object for a descriptive approach.
with red underlining
This converts 'underline' to a gerund, emphasizing the action of underlining.
in red with an underline
This variation reorders the elements, slightly shifting the focus.
red-underlined
This is a more concise, hyphenated adjective describing the underlined text.
highlighted in red
This alternative involves coloring the background of the text, offering a broader emphasis than just underlining.
red ink underline
Focuses specifically on the material used for underlining, adding a bit more detail.
marked in red
This is a more general term that could refer to underlining, highlighting, or other forms of marking with red ink or color.
emphasized with red
This phrase focuses on the purpose of emphasis, with red being the means to achieve it, rather than a specific visual style.
indicated in red
This suggests pointing out something specifically with red, not necessarily underlining.
denoted in red
Similar to 'indicated', this term is more formal and suggests a symbolic representation using the color red.
FAQs
How can I use "underlined in red" in a sentence?
You can use "underlined in red" to describe text that has been emphasized. For example, "The misspelled words were "underlined in red" for easy identification".
What's the difference between "underlined in red" and "highlighted in red"?
"Underlined in red" indicates a line drawn beneath the text, while "highlighted in red" refers to coloring the text's background. Underlining typically emphasizes specific words, while highlighting emphasizes larger blocks of text.
What are some alternatives to "underlined in red"?
Alternatives include "marked in red", "emphasized in red", or "indicated in red", depending on the specific nuance you want to convey.
Is "underlined in red" formal or informal?
The phrase "underlined in red" is generally neutral and appropriate for both formal and informal contexts. Its formality depends more on the surrounding text than the phrase itself.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested