white line

US: (hwīt′līn′, wīt′-)

WordReference Random House Unabridged Dictionary of American English © 2026

white′ line′, 

1. Transport 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.
• 1590–1600

white•line  (hwīt′līn′, wīt′-), n. [Naut.]

1. Nautical codline.

• white + line¹