The Collaborative International Dictionary of English v.0.48:

Huddle \Hud"dle\, v. i. [imp. & p. p. Huddled; p. pr. & vb. n.
   Huddling.] [Cf. OE. hoderen, hodren, to cover, keep, warm;
   perh. akin to OE. huden, hiden, to hide, E. hide, and orig.
   meaning, to get together for protection in a safe place. Cf.
   Hide to conceal.]
   To press together promiscuously, from confusion,
   apprehension, or the like; to crowd together confusedly; to
   press or hurry in disorder; to crowd.
   [1913 Webster]

         The cattle huddled on the lea.           --Tennyson.
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         Huddling together on the public square . . . like a
         herd of panic-struck deer.               --Prescott.
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The Collaborative International Dictionary of English v.0.48:

Huddle \Hud"dle\, v. t.
   1. To crowd (things) together to mingle confusedly; to
      assemble without order or system.
      [1913 Webster]

            Our adversary, huddling several suppositions
            together, . . . makes a medley and confusion.
                                                  --Locke.
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   2. To do, make, or put, in haste or roughly; hence, to do
      imperfectly; -- usually with a following preposition or
      adverb; as, to huddle on; to huddle up; to huddle
      together. "Huddle up a peace." --J. H. Newman.
      [1913 Webster]

            Let him forescat his work with timely care,
            Which else is huddled when the skies are fair.
                                                  --Dryden.
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            Now, in all haste, they huddle on
            Their hoods, their cloaks, and get them gone.
                                                  --Swift.
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The Collaborative International Dictionary of English v.0.48:

Huddle \Hud"dle\, n.
   A crowd; a number of persons or things crowded together in a
   confused manner; tumult; confusion. "A huddle of ideas."
   --Addison.
   [1913 Webster]

WordNet (r) 3.0 (2006):

huddle
    n 1: (informal) a quick private conference [syn: huddle,
         powwow]
    2: a disorganized and densely packed crowd; "a huddle of
       frightened women"
    v 1: crowd or draw together; "let's huddle together--it's cold!"
         [syn: huddle, huddle together]
    2: crouch or curl up; "They huddled outside in the rain" [syn:
       huddle, cower]

Moby Thesaurus II by Grady Ward, 1.0:

108 Moby Thesaurus words for "huddle":
   around, assemble, ataxia, audience, bargaining, bargaining session,
   bunch, bunch up, chaos, clasp, cling to, clot, clump, cluster,
   clutter, collect, come together, conclave, confab, confabulation,
   confer, conference, confrontation, congregate, congress, consult,
   consultation, convention, converge, copulate, council,
   council fire, council of war, couple, crowd, date, disarray,
   discuss, discussion, disorder, exchange of views,
   eyeball-to-eyeball encounter, flock together, flow together,
   follow close upon, forgather, fuse, gang around, gang up, gather,
   gather around, go with, group, hang about, herd, herd together,
   high-level talk, hive, horde, hover over, hug, hug the shore,
   hunch, interchange of views, interview, keep close to, league,
   lie by, link, march with, mass, meet, meeting, merge, mill, muddle,
   muster, negotiations, nestle, news conference, pack, palaver,
   parley, pourparler, powwow, press conference, rally, rally around,
   rendezvous, seance, seethe, session, sitting, snarl, stand by,
   stay inshore, stay near, stream, summit, summit conference,
   summitry, surge, swarm, tailgate, throng, topsy-turviness, treat,
   unite