The Collaborative International Dictionary of English v.0.48:

Bunt \Bunt\ (b[u^]nt), n. (Bot.)
   A fungus (Ustilago f[oe]tida) which affects the ear of
   cereals, filling the grains with a fetid dust; -- also called
   pepperbrand.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bunt \Bunt\, n. [Cf. Sw. bunt bundle, Dan. bundt, G. bund, E.
   bundle.] (Naut.)
   The middle part, cavity, or belly of a sail; the part of a
   furled sail which is at the center of the yard. --Totten.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bunt \Bunt\, n.
   A push or shove; a butt; specif. (Baseball), the act of
   bunting the ball.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Bunt \Bunt\, v. i. (Naut.)
   To swell out; as, the sail bunts.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bunt \Bunt\, v. t. & i.
   1. To strike or push with the horns or head; to butt; as, the
      ram bunted the boy.
      [1913 Webster]

   2. (Baseball) To bat or tap (the ball) slowly within the
      infield by meeting it with the bat without swinging at it.
      [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

bunt
    n 1: (baseball) the act of hitting a baseball lightly without
         swinging the bat
    2: disease of wheat characterized by replacement of the grains
       with greasy masses of smelly smut spores [syn: bunt,
       stinking smut]
    3: similar to Tilletia caries [syn: bunt, stinking smut,
       Tilletia foetida]
    4: fungus that destroys kernels of wheat by replacing them with
       greasy masses of smelly spores [syn: bunt, Tilletia
       caries]
    v 1: hit a ball in such a way so as to make it go a short
         distance [syn: bunt, drag a bunt]
    2: to strike, thrust or shove against; "He butted his sister out
       of the way"; "The goat butted the hiker with his horns" [syn:
       butt, bunt]

Moby Thesaurus II by Grady Ward, 1.0:

91 Moby Thesaurus words for "bunt":
   advance, assault, beak, bear, bear upon, bearing, boost, bowl,
   brush, buck, bull, bulldoze, bump, bump against, butt,
   butt against, chuck, cram, crowd, dab, dig, drive, driving force,
   elbow, fillip, flick, flip, flirt, force, forward, goad, graze,
   head, hurtle, hustle, impel, impulsion, jab, jam, jog, joggle,
   jolt, jostle, motive power, move, nudge, pat, peck, pedal, pick,
   pile drive, poke, pole, press, pressure, prod, propel, propelling,
   propelment, propulsion, pulsion, punch, push, pushing, ram,
   ram down, rap, rattle, roll, row, run, run against, shake,
   shoulder, shove, shoving, shunt, snap, stress, sweep, sweep along,
   tamp, tap, thrust, tickle, tip, touch, treadle, troll, trundle,
   whisk