The Collaborative International Dictionary of English v.0.48:

Fishing \Fish"ing\, n.
   1. The act, practice, or art of one who fishes.
      [1913 Webster]

   2. A fishery. --Spenser.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Fishing \Fish"ing\, a. [From Fishing, n.]
   Pertaining to fishing; used in fishery; engaged in fishing;
   as, fishing boat; fishing tackle; fishing village.
   [1913 Webster]

   Fishing fly, an artificial fly for fishing.

   Fishing line, a line used in catching fish.

   Fishing net, a net of various kinds for catching fish;
      including the bag net, casting net, drag net, landing net,
      seine, shrimping net, trawl, etc.

   Fishing rod, a long slender rod, to which is attached the
      line for angling.

   Fishing smack, a sloop or other small vessel used in sea
      fishing.

   Fishing tackle, apparatus used in fishing, as hook, line,
      rod, etc.

   Fishing tube (Micros.), a glass tube for selecting a
      microscopic object in a fluid.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Fish \Fish\, v. i. [imp. & p. p. Fished; p. pr. & vb. n.
   Fishing.]
   1. To attempt to catch fish; to be employed in taking fish,
      by any means, as by angling or drawing a net.
      [1913 Webster]

   2. To seek to obtain by artifice, or indirectly to seek to
      draw forth; as, to fish for compliments.
      [1913 Webster]

            Any other fishing question.           --Sir W.
                                                  Scott.
      [1913 Webster]

WordNet (r) 3.0 (2006):

fishing
    n 1: the act of someone who fishes as a diversion [syn:
         fishing, sportfishing]
    2: the occupation of catching fish for a living

Moby Thesaurus II by Grady Ward, 1.0:

38 Moby Thesaurus words for "fishing":
   angling, casting, cynegetic, delving, digging, fishery,
   fly fishing, following, guddling, halieutic, harpooning, hunting,
   in full cry, in hot pursuit, in pursuit, in search of, jigging,
   loaded for bear, looking for, nosy, out for, out for bear,
   piscation, piscatorial, piscatory, poking, probing, prying,
   pursuant, pursuing, questing, rod and reel, searching, seeking,
   still-fishing, trawling, trolling, whaling