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
are underlined
Grammar usage guide and real-world examplesUSAGE SUMMARY
"are underlined" is correct and usable in written English.
You can use it when emphasizing certain words or phrases within a sentence. For example, "The words that need extra emphasis are underlined."
✓ 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
60 human-written examples
Many are underlined.
News & Media
Those results are underlined with misfortune.
News & Media
Restriction sites are underlined.
Science
c restriction sites are underlined.
Science
These continuities are underlined in Gold (2015).
Science
Advantages of this new architecture are underlined.
Science
The guidelines for further research are underlined.
Science
NdeI and XhoI sites are underlined.
Science
The restriction enzyme sites are underlined.
Science
Attributes that are required are underlined.
BamHI and XhoI sites are underlined.
Science
Expert writing Tips
Best practice
Use "are underlined" to clearly indicate that specific text or elements have been visually emphasized with a line beneath them. This is particularly useful in academic papers, technical documentation, or any context where visual cues are important.
Common error
Avoid using "are underlined" when you actually mean another form of emphasis, such as bolding or italics. Make sure the visual formatting matches your description.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are underlined" functions as a passive verb phrase, indicating that certain elements have received a specific type of visual emphasis. As Ludwig AI states, the phrase is correct and usable in written English, confirming its grammatical validity.
Frequent in
Science
74%
News & Media
13%
Formal & Business
13%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "are underlined" is a grammatically sound and frequently used phrase, particularly within scientific and formal contexts. As Ludwig AI confirms, it's used to visually emphasize specific text, and its effectiveness depends on consistent and intentional application. Common alternatives include "are emphasized" and "are highlighted", though these may imply slightly different forms of emphasis. When using "are underlined", ensure that the visual formatting accurately reflects the intended meaning and that you're not confusing it with other emphasis techniques.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
are underscored
Synonymous, but may sound slightly more formal or technical.
are emphasized
Focuses on general emphasis rather than a specific visual marker.
are highlighted
Implies a broader visual highlighting, not necessarily a line underneath.
are italicized
Specifies a different form of textual emphasis.
are in bold
Indicates a different method of emphasis through bold typeface.
are marked
More general term for indicating specific elements without specifying how.
are denoted
Focuses on symbolic representation rather than visual emphasis.
are distinguished
Highlights the act of differentiation, not necessarily underlining.
are identified
Highlights the recognition of elements, without visual marker.
are made distinct
Focuses on the act of making something stand out, broader than underlining.
FAQs
How can I use "are underlined" in a sentence?
Use "are underlined" to indicate that specific words, phrases, or sections of text have been emphasized by placing a line beneath them. For example, "In this document, key terms "are underlined" to highlight their importance."
What's the difference between "are underlined" and "are highlighted"?
"Are underlined" refers specifically to drawing a line beneath text, whereas "are highlighted" means marking text with a color to make it stand out. The choice depends on the actual formatting used.
What are some alternatives to saying "are underlined"?
Depending on the context, you can use phrases like "are emphasized", "are underscored", or "are in italics" if a different form of emphasis is used.
Is it appropriate to use "are underlined" in formal writing?
Yes, "are underlined" is appropriate for formal writing, especially in academic papers or technical documents where visual cues are used to draw attention to specific information. The key is to ensure that underlining is consistently and intentionally applied.
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested