Source : Webster's Revised Unabridged Dictionary (1913)

Jump \Jump\, v. i. [imp. & p. p. {Jumped}; p. pr. & vb. n.
   {Jumping}.] [Akin to OD. gumpen, dial. G. gumpen, jumpen.]
   1. To spring free from the ground by the muscular action of
      the feet and legs; to project one's self through the air;
      to spring; to bound; to leap.

            Not the worst of the three but jumps twelve foot and
            a half by the square.                 -- Shak.

   2. To move as if by jumping; to bounce; to jolt. ``The
      jumping chariots.'' --Nahum iii. 2.

            A flock of geese jump down together.  -- Dryden.

   3. To coincide; to agree; to accord; to tally; -- followed by
      with. ``It jumps with my humor.'' --Shak.

   {To jump at}, to spring to; hence, fig., to accept suddenly
      or eagerly; as, a fish jumps at a bait; to jump at a
      chance.

Jumping \Jump"ing\, p. a. & vb. n.
   of {Jump}, to leap.

   {Jumping bean}, a seed of a Mexican {Euphorbia}, containing
      the larva of a moth ({Carpocapsa saltitans}). The larva by
      its sudden movements causes the seed to roll to roll and
      jump about.

   {Jumping deer} (Zo["o]l.), a South African rodent ({Pedetes
      Caffer}), allied to the jerboa.

   {Jumping jack}, a toy figure of a man, jointed and made to
      jump or dance by means of strings.

   {Jumping louse} (Zo["o]l.), any of the numerous species of
      plant lice belonging to the family {Psyllid[ae]}, several
      of which are injurious to fruit trees.

   {Jumping mouse} (Zo["o]l.), North American mouse ({Zapus
      Hudsonius}), having a long tail and large hind legs. It is
      noted for its jumping powers. Called also {kangaroo
      mouse}.

   {Jumping mullet} (Zo["o]l.), gray mullet.

   {Jumping shrew} (Zo["o]l.), any African insectivore of the
      genus {Macroscelides}. They are allied to the shrews, but
      have large hind legs adapted for jumping.

   {Jumping spider} (Zo["o]l.), spider of the genus {Salticus}
      and other related genera; one of the Saltigrad[ae]; -- so
      called because it leaps upon its prey.

Source : WordNet®

jumping
     n 1: the act of participating in an athletic competition in which
          you must jump
     2: the act of jumping; propelling yourself off the ground; "he
        advanced in a series of jumps"; "the jumping was
        unexpected" [syn: {jump}]