The Collaborative International Dictionary of English v.0.48:

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[imac]fa, and E. cleave to adhere.]
   1. To ascend or mount laboriously, esp. by use of the hands
      and feet.
      [1913 Webster]

   2. To ascend as if with effort; to rise to a higher point.
      [1913 Webster]

            Black vapors climb aloft, and cloud the day.
                                                  --Dryden.
      [1913 Webster]

   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.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Climb \Climb\, v. t.
   To ascend, as by means of the hands and feet, or laboriously
   or slowly; to mount.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Climb \Climb\, n.
   The act of one who climbs; ascent by climbing. --Warburton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

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, climb, upgrade] [ant: declension,
         declination, decline, declivity, descent,
         downslope, fall]
    2: an event that involves rising to a higher point (as in
       altitude or temperature or intensity etc.) [syn: climb,
       climbing, mounting]
    3: the act of climbing something; "it was a difficult climb to
       the top" [syn: climb, mount]
    v 1: go upward with gradual or continuous progress; "Did you
         ever climb up the hill behind your house?" [syn: climb,
         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, climb, 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, climb]

Moby Thesaurus II by Grady Ward, 1.0:

156 Moby Thesaurus words for "climb":
   abandon, abruptness, acclivity, advance, anabasis, arise, ascend,
   ascension, ascent, back, back up, bank, budge, cant, careen,
   chandelle, change, change place, circle, clamber, clamber up,
   climb down, climb over, climb up, climbing, crawl, creep, decline,
   descend, descent, dip, drop, ebb, edge, elevation, escalade,
   escalate, fall, fall away, fall off, flow, fountain, gain altitude,
   get over, give up, go, go around, go down, go downhill, go round,
   go sideways, go up, go uphill, grade, grow, gush, gyrate,
   gyring up, hoick, inch, incline, increase, jet, jump, keel, lean,
   leap, levitation, list, mount, mounting, move, move over, pitch,
   plunge, precipitousness, progress, rake, ramp, regress, renounce,
   retreat, retrogress, rise, rising, rising ground, rocketing up,
   rotate, route, run, saltation, scale, scale the heights,
   scrabble up, scramble up, shelve, shift, shin, shin up, shinny,
   shooting up, sidle, sink, slant, slope, soar, soaring, spin, spout,
   spring, spurt, steepness, stir, stream, struggle up, subside,
   surge, surmount, swag, sway, takeoff, taking off, tilt, tip, trail,
   travel, twine, upclimb, upcoming, updraft, upgang, upgo, upgoing,
   upgrade, upgrowth, uphill, upleap, uplift, upping, uprisal, uprise,
   uprising, uprush, upshoot, upslope, upsurge, upsurgence, upsweep,
   upswing, vault, verticalness, wane, whirl, withdraw from, zoom,
   zooming