Source : Webster's Revised Unabridged Dictionary (1913)

Climb \Climb\ (kl[imac]m), v. i. [imp. & p. p. {Climbed}
   (kl[imac]md), Obs. or Vulgar {Clomb} (kl[o^]m); p. pr. & vb.
   n. {Climbing}.] [AS. climban; akin to OHG. chlimban, G. & D.
   klimmen, Icel. kl[=i]fa, and E. cleave to adhere.]
   1. To ascend or mount laboriously, esp. by use of the hands
      and feet.

   2. To ascend as if with effort; to rise to a higher point.

            Black vapors climb aloft, and cloud the day.
                                                  --Dryden.

   3. (Bot.) To ascend or creep upward by twining about a
      support, or by attaching itself by tendrils, rootlets,
      etc., to a support or upright surface.

Climb \Climb\, v. t.
   To ascend, as by means of the hands and feet, or laboriously
   or slowly; to mount.

Climb \Climb\, n.
   The act of one who climbs; ascent by climbing. --Warburton.

Source : WordNet®

climb
     n 1: an upward slope or grade (as in a road); "the car couldn't
          make it up the rise" [syn: {ascent}, {acclivity}, {rise},
           {raise}, {upgrade}] [ant: {descent}]
     2: an event that involves rising to a higher point (as in
        altitude or temperature or intensity etc.) [syn: {climbing},
         {mounting}]
     3: the act of climbing something; "it was a difficult climb to
        the top" [syn: {mount}]

climb
     v 1: go upward with gradual or continuous progress; "Did you ever
          climb up the hill behind your house?" [syn: {climb up},
          {mount}, {go up}]
     2: move with difficulty, by grasping
     3: go up or advance; "Sales were climbing after prices were
        lowered" [syn: {wax}, {mount}, {rise}] [ant: {wane}]
     4: slope upward; "The path climbed all the way to the top of
        the hill"
     5: improve one's social status; "This young man knows how to
        climb the social ladder"
     6: increase in value or to a higher point; "prices climbed
        steeply"; "the value of our house rose sharply last year"
        [syn: {rise}, {go up}]