white line
Americannoun
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a stripe of white paint, tiles, or the like, that marks the center or outer edge of a road.
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a white layer in a horse's hoof.
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any blank or white part, line, stripe, or margin.
noun
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a line or strip of white in the centre of a road to separate traffic going in different directions
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a white lamination in the hoof of a horse
Etymology
Origin of white line
First recorded in 1590–1600
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.
Like sticky notes, rolling suitcases and the yellow first-down line in football, the solid white line on highways now sounds obvious.
From The Wall Street Journal ● Jul. 4, 2026
Verstappen was given a five-second penalty for crossing the white line at the pit exit, which underlines an underwhelming Sunday.
From BBC ● May 3, 2026
The "Bar" is a white line that marks a boundary beyond which guests may not pass when MPs are at work.
From BBC ● Jan. 19, 2024
“After the click, the video display shut down with only a white line visible to crew members.”
From Seattle Times ● Dec. 28, 2023
If any of the questions applied to them, then they would have to stand on the white line.
From "The Freedom Writers Diary" by The Freedom Writers
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.
