The Collaborative International Dictionary of English v.0.48:

Beat \Beat\ (b[=e]t), v. t. [imp. Beat; p. p. Beat,
   Beaten; p. pr. & vb. n. Beating.] [OE. beaten, beten, AS.
   be['a]tan; akin to Icel. bauta, OHG. b[=o]zan. Cf. 1st
   Butt, Button.]
   1. To strike repeatedly; to lay repeated blows upon; as, to
      beat one's breast; to beat iron so as to shape it; to beat
      grain, in order to force out the seeds; to beat eggs and
      sugar; to beat a drum.
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            Thou shalt beat some of it [spices] very small.
                                                  --Ex. xxx. 36.
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            They did beat the gold into thin plates. --Ex.
                                                  xxxix. 3.
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   2. To punish by blows; to thrash.
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   3. To scour or range over in hunting, accompanied with the
      noise made by striking bushes, etc., for the purpose of
      rousing game.
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            To beat the woods, and rouse the bounding prey.
                                                  --Prior.
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   4. To dash against, or strike, as with water or wind.
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            A frozen continent . . . beat with perpetual storms.
                                                  --Milton.
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   5. To tread, as a path.
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            Pass awful gulfs, and beat my painful way.
                                                  --Blackmore.
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   6. To overcome in a battle, contest, strife, race, game,
      etc.; to vanquish, defeat, or conquer; to surpass or be
      superior to.
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            He beat them in a bloody battle.      --Prescott.
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            For loveliness, it would be hard to beat that. --M.
                                                  Arnold.
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   7. To cheat; to chouse; to swindle; to defraud; -- often with
      out. [Colloq.]
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   8. To exercise severely; to perplex; to trouble.
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            Why should any one . . . beat his head about the
            Latin grammar who does not intend to be a critic?
                                                  --Locke.
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   9. (Mil.) To give the signal for, by beat of drum; to sound
      by beat of drum; as, to beat an alarm, a charge, a parley,
      a retreat; to beat the general, the reveille, the tattoo.
      See Alarm, Charge, Parley, etc.
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   10. to baffle or stump; to defy the comprehension of (a
       person); as, it beats me why he would do that.
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   11. to evade, avoid, or escape (blame, taxes, punishment);
       as, to beat the rap (be acquitted); to beat the sales tax
       by buying out of state.
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   To beat down, to haggle with (any one) to secure a lower
      price; to force down. [Colloq.]

   To beat into, to teach or instill, by repetition.

   To beat off, to repel or drive back.

   To beat out, to extend by hammering.

   To beat out of a thing, to cause to relinquish it, or give
      it up. "Nor can anything beat their posterity out of it to
      this day." --South.

   To beat the dust. (Man.)
       (a) To take in too little ground with the fore legs, as a
           horse.
       (b) To perform curvets too precipitately or too low.

   To beat the hoof, to walk; to go on foot.

   To beat the wing, to flutter; to move with fluttering
      agitation.

   To beat time, to measure or regulate time in music by the
      motion of the hand or foot.

   To beat up, to attack suddenly; to alarm or disturb; as, to
      beat up an enemy's quarters.
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   Syn: To strike; pound; bang; buffet; maul; drub; thump;
        baste; thwack; thrash; pommel; cudgel; belabor; conquer;
        defeat; vanquish; overcome.
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The Collaborative International Dictionary of English v.0.48:

Beaten \Beat"en\ (b[=e]t"'n; 95), a.
   1. Made smooth by beating or treading; worn by use. "A broad
      and beaten way." --Milton. "Beaten gold." --Shak. "off the
      beaten track."
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   2. Vanquished; defeated; conquered; baffled.
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   3. Exhausted; tired out.
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   4. Become common or trite; as, a beaten phrase. [Obs.]
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   5. Tried; practiced. [Obs.] --Beau. & Fl.
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WordNet (r) 3.0 (2006):

beaten
    adj 1: formed or made thin by hammering; "beaten gold"
    2: much trodden and worn smooth or bare; "did not stray from the
       beaten path"

Moby Thesaurus II by Grady Ward, 1.0:

113 Moby Thesaurus words for "beaten":
   all in, all up with, automatic, beat, beat up, bested, blebby,
   blistered, blistering, blistery, bone-weary, bubbling, bubbly,
   burbling, burbly, bushed, carbonated, chiffon, confounded,
   constant, dead, dead-and-alive, dead-tired, deadbeat, defeated,
   discomfited, dog-tired, dog-weary, done, done for, done in,
   done up, down, drained, ebullient, effervescent, exhausted,
   fagged out, fallen, fixed, fizzy, floored, frequent, gone,
   habitual, hackneyed, hors de combat, knocked out, lambasted,
   lathered, licked, on the skids, outdone, overborne, overcome,
   overmastered, overmatched, overpowered, overridden, overthrown,
   overturned, overwhelmed, panicked, persistent, played out, pooped,
   pooped out, prostrate, puffed, put to rout, ready to drop,
   recurrent, recurring, regular, repetitive, routed, routine, ruined,
   scattered, settled, silenced, skinned, skinned alive, souffle,
   souffleed, sparkling, spent, spumescent, stampeded, stereotyped,
   tired out, tired to death, trimmed, trite, trounced, tuckered out,
   undone, upset, used up, vesicant, vesicated, vesicatory, vesicular,
   washed-up, weary unto death, well-trodden, well-worn, whacked,
   whelmed, whipped, wiped out, worn-out, worsted