twinline
nounUK /ˈtwɪnlaɪn/
US /ˈtwɪnlaɪn/
Two lines that run side by side and never touch.
The artist drew a twinline down the middle of the page.
OTHER MEANINGS
2. A pair of closely spaced parallel lines used as a decorative pattern.
The wallpaper had a twinline pattern in soft blue.
3. A fishing setup that uses two lines joined together.
He rigged a twinline for stronger trolling.
4. A double track or pair of rails running together.
The old railway used a twinline through the valley.