The Collaborative International Dictionary of English v.0.48:

Crush \Crush\ (kr[u^]sh), v. t. [imp. & p. p. Crushed
   (kr[u^]sht); p. pr. & vb. n. Crushing.] [OE. cruschen,
   crousshen, Of. cruisir, croissir, fr. LL. cruscire, prob. of
   Ger. origin, from a derivative of the word seen in Goth.
   kruistan to gnash; akin to Sw. krysta to squeeze, Dan.
   kryste, Icel. kreysta.]
   1. To press or bruise between two hard bodies; to squeeze, so
      as to destroy the natural shape or integrity of the parts,
      or to force together into a mass; as, to crush grapes.
      [1913 Webster]

            Ye shall not offer unto the Lord that which is
            bruised, or crushed, or broken, or cut. --Lev. xxii.
                                                  24.
      [1913 Webster]

            The ass . . . thrust herself unto the wall, and
            crushed Balaam's foot against the wall. --Num. xxii.
                                                  25.
      [1913 Webster]

   2. To reduce to fine particles by pounding or grinding; to
      comminute; as, to crush quartz.
      [1913 Webster]

   3. To overwhelm by pressure or weight; to beat or force down,
      as by an incumbent weight.
      [1913 Webster]

            To crush the pillars which the pile sustain.
                                                  --Dryden.
      [1913 Webster]

            Truth, crushed to earth, shall rise again. --Bryant.
      [1913 Webster]

   4. To oppress or burden grievously.
      [1913 Webster]

            Thou shalt be only oppressed and crushed alway.
                                                  --Deut.
                                                  xxviii. 33.
      [1913 Webster]

   5. To overcome completely; to subdue totally.
      [1913 Webster]

            Speedily overtaking and crushing the rebels. --Sir.
                                                  W. Scott.
      [1913 Webster]

   6. to subdue or overwhelm (a person) by argument or a cutting
      remark; to cause (a person) to feel chagrin or
      humiliation; to squelch.
      [PJC]

   To crush a cup, to drink. [Obs.]

   To crush out.
      (a) To force out or separate by pressure, as juice from
          grapes.
      (b) To overcome or destroy completely; to suppress.
          [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

crushed \crushed\ adj.
   1. treated so as to have a permanently wrinkled appearance;
      -- of fabrics; as, crushed velvet.
      [WordNet 1.5]

   2. utterly defeated.

   Syn: subdued.
        [WordNet 1.5]

   3. brought low in condition or status by confusion,
      humiliation, or severe disappointment.

   Syn: broken, humbled, humiliated, low.
        [WordNet 1.5 +PJC]

   4. broken or pounded into small fragments; used of e.g. ore
      or stone. paved with crushed bluestone

   Syn: ground.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

crushed
    adj 1: treated so as to have a permanently wrinkled appearance;
           "crushed velvet"
    2: subdued or brought low in condition or status; "brought low";
       "a broken man"; "his broken spirit" [syn: broken,
       crushed, humbled, humiliated, low]

Moby Thesaurus II by Grady Ward, 1.0:

134 Moby Thesaurus words for "crushed":
   abashed, ashamed, baffled, balked, betrayed, bilked, blasted,
   blighted, blushing, branny, broken, broken-down, brokenhearted,
   brought low, chagrined, chalklike, chalky, chapfallen, comminute,
   comminuted, conquered, crestfallen, crossed, cut up, dashed,
   deep-troubled, defeated, demoralized, desolate, desolated,
   detrital, detrited, disappointed, disconsolate, dished,
   disillusioned, disintegrated, dissatisfied, domesticated, dusty,
   efflorescent, embarrassed, farinaceous, felled, fine, flaky,
   flattened, floury, foiled, frustrated, furfuraceous, gone to dust,
   grated, ground, hangdog, heart-stricken, heart-struck, heartbroken,
   heartsick, housebroke, housebroken, humbled, humiliated,
   ill done-by, ill-served, impalpable, inundated, let down,
   levigated, made to grovel, mastered, mealy, milled, miserable,
   mortified, neurasthenic, out of countenance, overcome, overwhelmed,
   pestled, powdered, powdery, prostrate, prostrated, pulverant,
   pulverized, pulverulent, put down, quashed, quelled, red-faced,
   reduced, reduced to jelly, reduced to powder, regretful, repressed,
   scaly, scobicular, scobiform, scurfy, shaken, shamed, shamefaced,
   shamefast, sharded, shot, shot to pieces, shredded, smashed,
   smothered, sorely disappointed, soured, squashed, squelched,
   stifled, stricken, subdued, subjugated, suffocated, suicidal,
   suppressed, tamed, thwarted, triturated, undone, unglued, unmanned,
   unnerved, unstrung, upset, vanquished, woebegone, woeful,
   wretched