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
This release from OpenAI underscores the rapid iteration cycles in the AI space, demanding continuous evaluation of model capabilities, cost structures and alignment with business objectives. Janakiram Msv, Forbes.com, 15 Apr. 2025 Their latest takeover of the city of Mirebalais in central Haiti has raised panic and underscored that no area of the country is immune. Jacqueline Charles, Miami Herald, 14 Apr. 2025
Noun
Though designed as a data center, its fire-safe structure and rapid construction timeline underscore 3D printing’s potential for large-scale, resilient infrastructure. Michael Molitch-Hou, Forbes.com, 4 Apr. 2025 That Reno is in the top three underscores Climate Central's point that rainfall intensity is rising in places that are generally dry, not just those that get at least a decent amount of annual rainfall. Alex Fitzpatrick, Axios, 2 Apr. 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 22 Apr. 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!