The Collaborative International Dictionary of English v.0.48:

Bugle \Bu"gle\, n. [OE. bugle buffalo, buffalo's horn, OF.
   bugle, fr. L. buculus a young bullock, steer, dim. of bos ox.
   See Cow the animal.]
   A sort of wild ox; a buffalo. --E. Phillips.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bugle \Bu"gle\, n. [See Bugle a wild ox.]
   1. A horn used by hunters.
      [1913 Webster]

   2. (Mus.) A copper instrument of the horn quality of tone,
      shorter and more conical that the trumpet, sometimes
      keyed; formerly much used in military bands, very rarely
      in the orchestra; now superseded by the cornet; -- called
      also the Kent bugle.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bugle \Bu"gle\, n. [LL. bugulus a woman's ornament: cf. G.
   b["u]gel a bent piece of metal or wood, fr. the same root as
   G. biegen to bend, E. bow to bend.]
   An elongated glass bead, of various colors, though commonly
   black.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bugle \Bu"gle\, a. [From Bugle a bead.]
   Jet black. "Bugle eyeballs." --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bugle \Bu"gle\, n. [F. bugle; cf. It. bugola, L. bugillo.]
   (Bot.)
   A plant of the genus Ajuga of the Mint family, a native of
   the Old World.
   [1913 Webster]

   Yellow bugle, the Ajuga cham[ae]pitys.
      [1913 Webster]

WordNet (r) 3.0 (2006):

bugle
    n 1: a brass instrument without valves; used for military calls
         and fanfares
    2: any of various low-growing annual or perennial evergreen
       herbs native to Eurasia; used for ground cover [syn: bugle,
       bugleweed]
    3: a tubular glass or plastic bead sewn onto clothing for
       decoration
    v 1: play on a bugle

Moby Thesaurus II by Grady Ward, 1.0:

100 Moby Thesaurus words for "bugle":
   alpenhorn, alphorn, althorn, alto horn, antlia, bagpipe,
   ballad horn, baritone, bass horn, bay, beak, beep, beezer, bell,
   bill, blare, blast, blat, blow, blow a horn, blow the horn,
   brass choir, brass wind, brass-wind instrument, brasses, bray,
   bugle horn, carillon, clarion, conk, cornet, cornet-a-pistons,
   corno di caccia, cornopean, doodle, double-bell euphonium,
   double-tongue, euphonium, fife, flute, helicon, honk, horn,
   hunting horn, key trumpet, lip, lituus, lur, mellophone, muffle,
   muzzle, nares, neb, nib, nose, nostrils, nozzle, olfactory organ,
   ophicleide, orchestral horn, peal, pecker, pipe, pocket trumpet,
   post horn, proboscis, rhinarium, rostrum, sackbut, saxhorn,
   saxtuba, schnozzle, serpent, shriek, slide trombone, sliphorn,
   smeller, snoot, snout, sound, sound a tattoo, sound taps,
   sousaphone, squeal, tenor tuba, tongue, toot, tootle,
   triple-tongue, tromba, trombone, trumpet, trunk, tuba, tweedle,
   valve trombone, valve trumpet, whistle, wind, wind the horn