Definition of surf line in English:

surf line

noun

  • 1The point at which waves approaching a shore begin to break or form surf; the line of white foamy water produced by this.

  • 2A line attached to a fixed point, such as an anchor, and used to help keep a boat stable and pointing in the desired direction when attempting to approach a beach or other destination through heavy surf. Now rare.

Origin

Mid 19th century. From surf + line.

Pronunciation

surf line

/ˈsəːf ˌlʌɪn/