underline
Americanverb (used with object)
-
to mark with a line or lines underneath; underscore.
-
to indicate the importance of; emphasize, as by stressing or italicizing.
noun
-
Printing. a caption under an illustration.
-
a line drawn under something; an underscore.
verb
-
to put a line under
-
to state forcibly; emphasize or reinforce
noun
Other Word Forms
Derived Forms
Conjugated Forms
Present
-
have underlinedperfect
-
has underlinedperfect 3rd person singular
-
underlinessingular 3rd person
-
underliningparticiple
-
have been underliningperfect progressive
-
are underliningprogressive
-
is underliningprogressive 3rd person singular
-
has been underliningperfect progressive 3rd person singular
-
am underliningprogressive 1st person singular
Past
-
had underlinedperfect
-
were underliningprogressive plural
-
underlinedsimple
-
underlinedparticiple
-
had been underliningperfect progressive
-
was underliningprogressive singular
Future
Etymology
Origin of underline
Vocabulary lists containing underline
Language and Grammar - Introductory
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Language and Grammar - Middle School
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Reading: Informational - Introductory
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
“You want big and bold? Underline big and bold,” Sanders told the AP.
From Seattle Times • Jun. 14, 2021
Underline the digit to the right of the given place value.
From Textbooks • Apr. 22, 2020
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 on title page the first letter of words which must be lettered on back.
From Library Bookbinding by Bailey, Arthur Low
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.
