white line

noun

1. a stripe of white paint, tiles, or the like, that marks the center or outer edge of a road.
2. a white layer in a horse's hoof.
3. any blank or white part, line, stripe, or margin.

white line

noun

1. a line or strip of white in the centre of a road to separate traffic going in different directions
2. a white lamination in the hoof of a horse

Word History and Origins

Origin of white line¹

First recorded in 1590–1600

Example Sentences

Above, a pair of Israeli warplanes traced white lines in the sky.

From Los Angeles Times

The force's Operation Snap encourages people to send in footage of drivers or motorcyclists using a mobile phone, not wearing a seatbelt, failing to stop at a red light and crossing white lines.

From BBC

Restricted by white lines, his voice still made it on to the field while he demanded angles and illustrated instructions with his hands as if conducting rush-hour traffic.

From BBC

He won’t step on any of the straight white lines that frame the doubles alley, nor anywhere else on the court.

From Salon

Instead of a burst of white lines, it features a void of darkness.

From Seattle Times