underscore

1 of 2

verb

un·​der·​score ˈən-dər-ˌskȯr How to pronounce underscore (audio)
underscored; underscoring; underscores

transitive verb

1
: to draw a line under : underline
2
: to make evident : emphasize, stress
arrived early to underscore the importance of the occasion
3
: to provide (action on film) with accompanying music

underscore

2 of 2

noun

1
: a line drawn under a word or line especially for emphasis or to indicate intent to italicize
2
: music accompanying the action and dialogue of a film

Examples of underscore in a Sentence

Verb These failures underscore the difficulty of what we're attempting to do. The President's visit underscores the administration's commitment to free trade. She underscored the most important points.
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
Cutting that exemption underscores how important the US is to the global chip supply chain – and to all the products those chips help power, from cars to phones to weapon systems. John Liu, CNN Money, 5 Sep. 2025 That data comes courtesy of payroll processor ADP and marks a steep slowdown from July’s upwardly revised 106,000, underscoring how fragile employment momentum has become halfway through 2025. Andrew Nusca, Fortune, 5 Sep. 2025
Noun
The fresh capital and usage growth underscore surging investor appetite for AI platforms as competition heats up. Mackenzie Sigalos, CNBC, 4 Aug. 2025 The underscore following the word ‘new’ means limitless potential for reinventing themselves. Laura Sirikul, Forbes.com, 28 July 2025 See All Example Sentences for underscore

Word History

First Known Use

Verb

1771, in the meaning defined at sense 1

Noun

1901, in the meaning defined at sense 1

Time Traveler
The first known use of underscore was in 1771

Browse Nearby Words

Cite this Entry

“Underscore.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underscore. Accessed 6 Sep. 2025.

Kids Definition

underscore

verb
un·​der·​score
ˈən-dər-ˌskō(ə)r,
-ˌskȯ(ə)r
1
: to draw a line under : underline
2
underscore noun

More from Merriam-Webster on underscore

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!