The Collaborative International Dictionary of English v.0.48:

Hike \Hike\, v. t. [imp. & p. p. Hiked; p. pr. & vb. n.
   Hiking.] [Cf. Hitch.]
   1. To move with a swing, toss, throw, jerk, or the like.
      [Dial. or Colloq.]
      [Webster 1913 Suppl.]

   2. To raise with a quick movement.
      [PJC]

   3. To raise (a price) quickly or significantly in a single
      step. They hiked gasoline prices twenty cents in less than
      a week.
      [PJC]

   4. (Football) To pass (the ball) from the center to the
      quarterback at the start of the play; to snap (the
      ball).
      [PJC]

WordNet (r) 3.0 (2006):

hiking
    n 1: a long walk usually for exercise or pleasure; "she enjoys a
         hike in her spare time" [syn: hike, hiking, tramp]

Moby Thesaurus II by Grady Ward, 1.0:

50 Moby Thesaurus words for "hiking":
   addition, adjunct, aggrandizement, ambling, ambulation, ampliation,
   amplification, augmentation, backpacking, broadening, crescendo,
   deployment, dispersion, enlargement, expansion, extension,
   fanning out, flare, footing, footing it, footwork, going on foot,
   hitchhiking, hitching, hoofing, increase, legwork, lumbering,
   magnification, marching, pedestrianism, perambulation, raising,
   sauntering, splay, spread, spreading, staggering, strolling,
   thumbing, thumbing a ride, toddling, tottering, tramping, treading,
   trudging, upping, waddling, walking, widening