(optics) A surface to which rays reflected or refracted by another surface are tangents.

A person who rides a surfboard. / A person who surfs the Internet. / (obsolete) A duck, the surf scoter (Melanitta perspicillata).

(obsolete) One who rides the surf usually on a surfboard; a surfer

(obsolete) surfing

Caused to feel surprise, amazement or wonder, or showing an emotion due to an unexpected event.

simple past tense and past participle of surprise

present participle of surf

The pastime or sport of riding surf on a surfboard. / The activity of browsing the Internet.

A shaped waterproof plank, usually made of wood or foam and reinforced plastic, used to surf on waves.

To use a surfboard; to surf.