Underline Definition

ŭndər-līn, ŭndər-līn
underlined, underlines, underlining
verb
underlined, underlines, underlining
To draw a line beneath; underscore.
Webster's New World
To stress or emphasize.
Webster's New World
noun
underlines
A line underneath, as an underscore.
Webster's New World
A line under something, such as a symbol, word, or phrase, used to indicate emphasis or italic type.
American Heritage
The character _.
Wiktionary
Synonyms:
adjective
Passing under a railway line.
Wiktionary

Other Word Forms of Underline

Noun

Singular:
underline
Plural:
underlines

Origin of Underline

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Unscrambles

underline