A wavy line is a line that rises and falls smoothly. Draw a wavy line, a wavy line under it, wavy lines across the screen.
In old films a wavy line was the standard signal that a flashback was starting, which everybody understood without being told. On a screen it means interference, and a wavy line under text in a word processor marks a grammar doubt.
1nounwavy lineA line that rises and falls smoothly.
“The child drew a wavy line across the page to show the sea.”
wavy line is a line.
Practised in Light & Shadow, Shapes & Lines