underline
Americanverb (used with object)
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to mark with a line or lines underneath; underscore.
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to indicate the importance of; emphasize, as by stressing or italicizing.
noun
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Printing. a caption under an illustration.
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a line drawn under something; an underscore.
verb
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to put a line under
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to state forcibly; emphasize or reinforce
noun
Other Word Forms
Derived Forms
Conjugated Forms
Present
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have underlinedperfect
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has underlinedperfect 3rd person singular
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underlinessingular 3rd person
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underliningparticiple
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have been underliningperfect progressive
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are underliningprogressive
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is underliningprogressive 3rd person singular
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has been underliningperfect progressive 3rd person singular
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am underliningprogressive 1st person singular
Past
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had underlinedperfect
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were underliningprogressive plural
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underlinedsimple
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underlinedparticiple
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had been underliningperfect progressive
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was underliningprogressive singular
Future
Etymology
Origin of underline
Vocabulary lists containing underline
Language and Grammar - Introductory
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Language and Grammar - Middle School
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Reading: Informational - Introductory
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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.
Underline places where more vivid details would bring events or ideas to life.
From Textbooks • Dec. 21, 2021
“You can capitalize that if you want. Underline it. Cap it,” Meyer said.
From Seattle Times • Aug. 25, 2021
Underline passages in how-to books that feel appealing to her.
From Slate • Aug. 22, 2019
Similarly, Miami’s Underline aims to make a 10-mile “linear park, urban trail and canvas for art” out of the land beneath its rail system’s elevated track, currently used for either parking or nothing at all.
From The Guardian • Aug. 15, 2017
Underline PREMEBANT, clearly the principal verb, and bracket cum to conversa esset.
From Helps to Latin Translation at Sight by Luce, Edmund
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.