horizontal line
Americannoun
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horizontal lines
plural
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a line that is parallel to the base of a surface or plane. Compare vertical line.
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Mathematics. a line whose points all have the same vertical coordinate.
Other Word Forms
Noun Inflected Forms
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.
On the wall of a five-story building that collapsed after the earthquake, a rescuer marked a red "V" crossed by a horizontal line, indicating the end of the search for possible survivors.
From Barron's ● Aug. 17, 2026
If gold was an effective hedge against inflation — if it protected your purchasing power — that chart would be a reasonably stable horizontal line from left to right.
From MarketWatch ● Oct. 14, 2025
They form a horizontal line, listening intently to each other as they dissect the bold sonics of the new record.
From Los Angeles Times ● Aug. 23, 2024
Close inspection also shows a faint horizontal line bisecting each Milky Way star, which is caused by light bending around a support strut of the telescope’s secondary mirror.
From Scientific American ● Nov. 3, 2023
At first, all she saw was darkness—a tight, closed-up sort of darkness, with a single, pale, horizontal line of light cutting across.
From "The Girl Who Drank the Moon" by Kelly Barnhill
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.
