The Collaborative International Dictionary of English v.0.48:

Stump \Stump\, v. i.
   To walk clumsily, as if on stumps.
   [1913 Webster]

   To stump up, to pay cash. [Prov. Eng.] --Halliwell.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Stump \Stump\, n. [OE. stumpe, stompe; akin to D. stomp, G.
   stumpf, Icel. stumpr, Dan. & Sw. stump, and perhaps also to
   E. stamp.]
   1. The part of a tree or plant remaining in the earth after
      the stem or trunk is cut off; the stub.
      [1913 Webster]

   2. The part of a limb or other body remaining after a part is
      amputated or destroyed; a fixed or rooted remnant; a stub;
      as, the stump of a leg, a finger, a tooth, or a broom.
      [1913 Webster]

   3. pl. The legs; as, to stir one's stumps. [Slang]
      [1913 Webster]

   4. (Cricket) One of the three pointed rods stuck in the
      ground to form a wicket and support the bails.
      [1913 Webster]

   5. A short, thick roll of leather or paper, cut to a point,
      or any similar implement, used to rub down the lines of a
      crayon or pencil drawing, in shading it, or for shading
      drawings by producing tints and gradations from crayon,
      etc., in powder.
      [1913 Webster]

   6. A pin in a tumbler lock which forms an obstruction to
      throwing the bolt, except when the gates of the tumblers
      are properly arranged, as by the key; a fence; also, a pin
      or projection in a lock to form a guide for a movable
      piece.
      [1913 Webster]

   Leg stump (Cricket), the stump nearest to the batsman.

   Off stump (Cricket), the stump farthest from the batsman.


   Stump tracery (Arch.), a term used to describe late German
      Gothic tracery, in which the molded bar seems to pass
      through itself in its convolutions, and is then cut off
      short, so that a section of the molding is seen at the end
      of each similar stump.

   To go on the stump, or To take the stump, to engage in
      making public addresses for electioneering purposes; -- a
      phrase derived from the practice of using a stump for a
      speaker's platform in newly-settled districts. Hence also
      the phrases stump orator, stump speaker, stump speech,
      stump oratory, etc. [Colloq. U.S.]

   on the stump campaigning for public office; running for
      election to office.
      [1913 Webster +PJC]

The Collaborative International Dictionary of English v.0.48:

Stump \Stump\, v. t. [imp. & p. p. Stumped; p. pr. & vb. n.
   Stumping.]
   1. To cut off a part of; to reduce to a stump; to lop.
      [1913 Webster]

            Around the stumped top soft moss did grow. --Dr. H.
                                                  More.
      [1913 Webster]

   2. To strike, as the toes, against a stone or something
      fixed; to stub. [Colloq.]
      [1913 Webster]

   3. To challenge; also, to nonplus. [Colloq.]
      [1913 Webster]

   4. To travel over, delivering speeches for electioneering
      purposes; as, to stump a State, or a district. See To go
      on the stump, under Stump, n. [Colloq. U.S.]
      [1913 Webster]

   5. (Cricket)
      (a) To put (a batsman) out of play by knocking off the
          bail, or knocking down the stumps of the wicket he is
          defending while he is off his allotted ground; --
          sometimes with out. --T. Hughes.
      (b) To bowl down the stumps of, as, of a wicket.
          [1913 Webster]

                A herd of boys with clamor bowled,
                And stumped the wicket.           --Tennyson.
          [1913 Webster]

   To stump it.
      (a) To go afoot; hence, to run away; to escape. [Slang]
          --Ld. Lytton.
      (b) To make electioneering speeches. [Colloq. U.S.]
          [1913 Webster]

WordNet (r) 3.0 (2006):

stump
    n 1: the base part of a tree that remains standing after the
         tree has been felled [syn: stump, tree stump]
    2: the part of a limb or tooth that remains after the rest is
       removed
    3: (cricket) any of three upright wooden posts that form the
       wicket
    4: a platform raised above the surrounding level to give
       prominence to the person on it [syn: dais, podium,
       pulpit, rostrum, ambo, stump, soapbox]
    v 1: cause to be perplexed or confounded; "This problem stumped
         her" [syn: stump, mix up]
    2: walk heavily; "The men stomped through the snow in their
       heavy boots" [syn: stomp, stamp, stump]
    3: travel through a district and make political speeches; "the
       candidate stumped the Northeast"
    4: remove tree stumps from; "stump a field"

Moby Thesaurus II by Grady Ward, 1.0:

324 Moby Thesaurus words for "stump":
   Thule, Ultima Thule, addle, address, afterglow, afterimage,
   air brush, amaze, amble, art paper, baffle, balance, balcony, balk,
   bamboozle, barge, barnstorm, beat, bewilder, bit, bitter end,
   blast, boggle, bottom dollar, boundary, bowl along, brave,
   bring up short, brush, buffalo, bundle, butt, butt end,
   camera lucida, camera obscura, campaign, candle ends, canvas,
   canvass, cartel, catafalque, chaff, chalk, challenge, charcoal,
   checkmate, chip, chip in, chug on, chunk, circumvent, clip,
   clipping, clump, collop, confound, confront, confuse, contravene,
   contribute, cough up, counter, counteract, countermand,
   counterwork, crayon, cross, crumb, cut, cutting, dais, dare, dash,
   daze, debris, defeat, defi, defy, deliver an address, destroy,
   detritus, discomfit, disconcert, discountenance, discourse, dish,
   disrupt, dollop, donate, drag, drawing paper, drawing pencil,
   drier, dumbfound, easel, electioneer, elude, emplacement, end,
   estrade, extreme, extremity, fag end, farthest bound, filings,
   fixative, floor, flounce, flummox, foil, foot, footslog, fork out,
   fossil, fragment, frustrate, fuddle, gallery, get, give a talk,
   gob, gobbet, ground, halt, heliport, hippety-hop, hitch, hobble,
   holdover, hop, hunk, husks, hustings, jog, jog on, jolt, jump,
   jumping-off place, keep in suspense, knock the chocks, landing,
   landing pad, landing stage, launching pad, lay figure, leavings,
   leftovers, lick, limit, limp, lumber, lump, lunge, lurch,
   maulstick, maze, medium, mince, modicum, moiety, morsel, muddle,
   mystify, nib, nonplus, odds and ends, offscourings, orts, pace,
   paddle, paint, paintbrush, palette, palette knife, paring, parings,
   particle, pastel, pay out, pay up, peg, pencil, perplex, piaffe,
   piaffer, piece, pigments, platform, plod, plod along, plug,
   plug along, podium, point, pole, prance, pulpit, puzzle, rack,
   rags, rasher, refuse, relics, remainder, remains, remnant, residue,
   residuum, rest, ring doorbells, roach, roll, rostrum, rub on,
   rubbish, ruin, ruins, rump, sabotage, sashay, saunter, sawdust,
   schlep, scoop, scotch, scourings, scrap, scraps, scratchboard,
   scuff, scuffle, scuttle, shadow, shamble, shard, shaving, shavings,
   shell out, shiver, shred, shuffle, siccative, sidle, single-foot,
   sketchbook, sketchpad, skip, slice, slink, slither, sliver, slog,
   slouch, smithereen, snack, snatch, snip, snippet, soapbox,
   solicit votes, spatula, speak, speechify, spike, splinter, spoil,
   spray gun, stage, stagger, stalk, stamp, step terrace, stick,
   stitch, stomp, stonewall, stop, straddle, straggle, straw, stride,
   stroll, strut, stub, stubble, stumble, stump the country, stump up,
   stymie, survival, swagger, sweepings, swing, tag, tag end, tail,
   tail end, take the floor, take the stump, talk, tatter, terrace,
   throw, thwart, tip, tittup, toddle, totter, trace, traipse, tramp,
   tribunal, tribune, trip, trudge, upset, varnish, vestige, waddle,
   wamble, waste, whistle-stop, wiggle, wobble