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Definition of underscore

underscore

/ˈʌn.dɚ.skɔːr/
un · der · score

Plural:underscores
•
Past Simple:underscored
•
Past Participle:underscored
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Present Participle:underscoring
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underscore Lexical Profile

underscore Game Scores & Validity

• verb

1

To emphasize, highlight, or demonstrate the special importance or validity of something.

Example

"The recent clinical findings underscore the importance of early screening for cardiovascular conditions."


2

To draw or print a horizontal line underneath a word or passage in a text.

Example

"The student used a red pen to underscore the key vocabulary terms in each chapter."


3

To accompany spoken dialogue or scenes in a film or theatrical production with background music.

Example

"Delicate piano chords underscore the final conversation between the two protagonists."

Synonyms
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Antonyms
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• noun

1

A line drawn beneath a word or phrase for emphasis, or the typographic character (_) used in computing and file naming where spaces are not permitted.

Example

"Please replace any spaces in the document's filename with an underscore before uploading it to the server."


2

Subtle background music played beneath spoken dialogue or action in a film, play, or television broadcast to establish mood and heighten emotional tension.

Example

"The composer wrote a quiet cello underscore to accompany the dramatic monologue in the second act."

Synonyms
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Word Origin & Etymology

Formed in the late 18th century from 'under-' and 'score' (meaning to mark with a line, ultimately from Old Norse 'skor', meaning a notch or incision). Originally referring to drawing a physical line beneath written text, it acquired its figurative sense of emphasizing a point in the late 19th century.

Cite this Entry


Wordmom. (2026). Definition of Underscore. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/underscore
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