1. [n]  waves breaking on the shore
2. [v]  switch channels, on television
3. [v]  look around casually and randomly, without seeking anything in particular; "browse a computer directory"; "surf the internet or the world wide web"
4. [v]  ride the waves of the sea with a surfboard; "Californians love to surf"

Surf
Provides instruction in everything from getting used to being in the ocean to surfing in professional competitions.

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1. \Surf\, n. [Formerly spelled suffe, and probably the same
   word as E. sough.]
   The swell of the sea which breaks upon the shore, esp. upon a
   sloping beach.
   {Surf bird} (Zo["o]l.), a ploverlike bird of the genus
      {Aphriza}, allied to the turnstone.
   {Surf clam} (Zo["o]l.), a large clam living on the open
      coast, especially {Mactra, or Spisula, solidissima}. See
      {Mactra}.
   {Surf duck} (Zo["o]l.), any one of several species of sea
      ducks of the genus {Oidemia}, especially {O.
      percpicillata}; -- called also {surf scoter}. See the Note
      under {Scoter}.
   {Surf fish} (Zo["o]l.), any one of numerous species of
      California embiotocoid fishes. See {Embiotocoid}.
   {Surf smelt}. (Zo["o]l.) See {Smelt}.
   {Surf whiting}. (Zo["o]l.) See under {Whiting}.
   

2. \Surf\, n.
   The bottom of a drain. [Prov. Eng.]