underline

1 of 2

verb

underlined; underlining; underlines

transitive verb

1
: to mark (something, such as a word) with a line underneath
2
: to put emphasis on : stress
3
: to show clearly or emphatically

underline

2 of 2

noun

un·​der·​line ˈən-dər-ˌlīn How to pronounce underline (audio)
1
: the outline of a quadruped's underbody
also : the ventral surface of a quadruped's body
2
: a horizontal line placed underneath something

Examples of underline in a Sentence

Verb His name was underlined in the book. The accident underlines our need for better safety procedures.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Verb
For some Israelis, the fate of the Bibas family underlined the need to restart the war to defeat Hamas once and for all. Patrick Kingsley, New York Times, 21 Feb. 2025 On top of that, the bifurcated score underlines the film’s identity crisis, oscillating between plucky guitar compositions from Andrew Simon McAllister better suited to a buddy-cop comedy and smooth, synth-heavy instrumentals from Mono Town that align more with a sleek spy flick. Courtney Howard, Variety, 20 Feb. 2025
Noun
Also memorable is an earlier image while still in Hamburg, in Sarah’s apartment, where the passing trains through the window underline the overall feeling of transience. Jay D. Weissberg, Deadline, 19 Feb. 2025 When on the ball, the aim is often to work the ball to Salah to finish off the moves, as this graphic comparing Premier League players' contributions to their teams' attacking output underlines. Andy Jones, The Athletic, 13 Feb. 2025 See All Example Sentences for underline

Word History

First Known Use

Verb

1721, in the meaning defined at sense 1

Noun

1886, in the meaning defined at sense 1

Time Traveler
The first known use of underline was in 1721

Browse Nearby Words

Cite this Entry

“Underline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underline. Accessed 4 Mar. 2025.

Kids Definition

underline

verb
un·​der·​line
ˈən-dər-ˌlīn,
ˌən-dər-ˈlīn
1
: to draw a line under : underscore
2
underline
ˈən-dər-ˌlīn
noun

More from Merriam-Webster on underline

Last Updated: - Updated example sentences
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