underscore
Americanverb (used with object)
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to mark with a line or lines underneath; underline, as for emphasis.
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to stress; emphasize.
The recent tragedy underscores the danger of disregarding safety rules.
noun
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a line drawn beneath something written or printed.
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music for a film soundtrack; background for a film or stage production.
verb
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to draw or score a line or mark under
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to stress or reinforce
noun
Etymology
Origin of underscore
Explanation
To underscore is to draw special attention to a fact, idea, or situation. When you're involved in a debate, it’s wise to underscore the points that best support your argument. Literally, underscore means “to underline,” or draw a line beneath a word to emphasize it. In common speech, to underscore something is to call attention to it. If a worker sustained an injury on the job, for instance, the event would underscore the need for workplace safety. Underscore is also used to mean "emphasize." During a job interview, you want to underscore any experience that relates to the job you are applying for.
Vocabulary lists containing underscore
The SAT: Language of the Test, List 2
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The ACT: The Language of the Test, List 2
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The New SAT: The Language of the Test
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The findings, based on more than 20 years of data of koala rescues, underscore the threat facing not just humans but wildlife as climate change makes heatwaves more frequent and intense.
From Barron's • May 26, 2026
Here again there are exceptions, but these underscore the absence of constitutional authority for Blanche’s action.
From Slate • May 26, 2026
For Wallace Bulimo, biochemistry professor at Kenya's University of Nairobi, events in DR Congo underscore the need for more investment.
From BBC • May 22, 2026
Disney and OpenAI thought their billion-dollar deal would underscore the importance of AI for Hollywood’s future.
From Los Angeles Times • May 19, 2026
To underscore his point, he sent a gigantic barrel of ice-packed champagne to the press box, complete with a card.
From "Seabiscuit: An American Legend" by Laura Hillenbrand
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
