The Collaborative International Dictionary of English v.0.48:

Tear \Tear\ (t[^a]r), v. t. [imp. Tore (t[=o]r), ((Obs.
   Tare) (t[^a]r); p. p. Torn (t[=o]rn); p. pr. & vb. n.
   Tearing.] [OE. teren, AS. teran; akin to OS. farterian to
   destroy, D. teren to consume, G. zerren to pull, to tear,
   zehren to consume, Icel. t>ae/ra, Goth. gata['i]ran to
   destroy, Lith. dirti to flay, Russ. drate to pull, to tear,
   Gr. de`rein to flay, Skr. dar to burst. [root]63. Cf. Darn,
   Epidermis, Tarre, Tirade.]
   1. To separate by violence; to pull apart by force; to rend;
      to lacerate; as, to tear cloth; to tear a garment; to tear
      the skin or flesh.
      [1913 Webster]

            Tear him to pieces; he's a conspirator. --Shak.
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   2. Hence, to divide by violent measures; to disrupt; to rend;
      as, a party or government torn by factions.
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   3. To rend away; to force away; to remove by force; to
      sunder; as, a child torn from its home.
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            The hand of fate
            Hath torn thee from me.               --Addison.
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   4. To pull with violence; as, to tear the hair.
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   5. To move violently; to agitate. "Once I loved torn ocean's
      roar." --Byron.
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   To tear a cat, to rant violently; to rave; -- especially
      applied to theatrical ranting. [Obs.] --Shak.

   To tear down, to demolish violently; to pull or pluck down.


   To tear off, to pull off by violence; to strip.

   To tear out, to pull or draw out by violence; as, to tear
      out the eyes.

   To tear up, to rip up; to remove from a fixed state by
      violence; as, to tear up a floor; to tear up the
      foundation of government or order.
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The Collaborative International Dictionary of English v.0.48:

Torn \Torn\,
   p. p. of Tear.
   [1913 Webster]

WordNet (r) 3.0 (2006):

torn
    adj 1: having edges that are jagged from injury [syn:
           lacerate, lacerated, mangled, torn]
    2: disrupted by the pull of contrary forces; "torn between love
       and hate"; "torn by conflicting loyalties"; "torn by
       religious dissensions"

Moby Thesaurus II by Grady Ward, 1.0:

93 Moby Thesaurus words for "torn":
   affected, aggravated, agonized, alienated, broken, burned, burst,
   busted, checked, chipped, cleft, cloven, cracked, crazed, cut,
   damaged, deteriorated, devoured by, disaffected, disunited,
   divided, dowdy, down-at-heel, down-at-the-heels, embittered,
   estranged, exacerbated, frayed, frazzled, full of holes, harmed,
   holey, hurt, imbued with, impaired, imperfect, impressed,
   impressed with, in bits, in pieces, in rags, in shards, in shreds,
   in tatters, injured, irreconcilable, irritated, lacerate,
   lacerated, mangled, moved, mutilated, obsessed, obsessed by,
   patchy, penetrated with, quartered, racked, ragged, raggedy, ratty,
   rent, riven, ruptured, scalded, scorched, scruffy, seedy,
   seized with, separated, severed, shabby, shattered, shoddy,
   shredded, slashed, slit, smashed, splintered, split, sprung,
   stricken, tacky, tattered, tatty, the worse for, tortured, touched,
   weakened, worse, worse off, worsened, wracked