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.
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            The ass . . . thrust herself unto the wall, and
            crushed Balaam's foot against the wall. --Num. xxii.
                                                  25.
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   2. To reduce to fine particles by pounding or grinding; to
      comminute; as, to crush quartz.
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   3. To overwhelm by pressure or weight; to beat or force down,
      as by an incumbent weight.
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            To crush the pillars which the pile sustain.
                                                  --Dryden.
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            Truth, crushed to earth, shall rise again. --Bryant.
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   4. To oppress or burden grievously.
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            Thou shalt be only oppressed and crushed alway.
                                                  --Deut.
                                                  xxviii. 33.
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   5. To overcome completely; to subdue totally.
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            Speedily overtaking and crushing the rebels. --Sir.
                                                  W. Scott.
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   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:

Crush \Crush\ (kr[u^]sh), v. i.
   To be or become broken down or in, or pressed into a smaller
   compass, by external weight or force; as, an eggshell crushes
   easily.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Crush \Crush\, n.
   1. A violent collision or compression; a crash; destruction;
      ruin.
      [1913 Webster]

            The wreck of matter, and the crush of worlds.
                                                  --Addison.
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   2. Violent pressure, as of a crowd; a crowd which produced
      uncomfortable pressure; as, a crush at a reception.
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   Crush hat, a hat which collapses, and can be carried under
      the arm, and when expanded is held in shape by springs;
      hence, any hat not injured by compressing.

   Crush room, a large room in a theater, opera house, etc.,
      where the audience may promenade or converse during the
      intermissions; a foyer.
      [1913 Webster]

            Politics leave very little time for the bow window
            at White's in the day, or for the crush room of the
            opera at night.                       --Macaulay.
      [1913 Webster]

WordNet (r) 3.0 (2006):

crush
    n 1: leather that has had its grain pattern accentuated [syn:
         crushed leather, crush]
    2: a dense crowd of people [syn: crush, jam, press]
    3: temporary love of an adolescent [syn: puppy love, calf
       love, crush, infatuation]
    4: the act of crushing [syn: crush, crunch, compaction]
    v 1: come down on or keep down by unjust use of one's authority;
         "The government oppresses political activists" [syn:
         oppress, suppress, crush]
    2: to compress with violence, out of natural shape or condition;
       "crush an aluminum can"; "squeeze a lemon" [syn: squash,
       crush, squelch, mash, squeeze]
    3: come out better in a competition, race, or conflict; "Agassi
       beat Becker in the tennis championship"; "We beat the
       competition"; "Harvard defeated Yale in the last football
       game" [syn: beat, beat out, crush, shell, trounce,
       vanquish]
    4: break into small pieces; "The car crushed the toy"
    5: humiliate or depress completely; "She was crushed by his
       refusal of her invitation"; "The death of her son smashed
       her" [syn: crush, smash, demolish]
    6: crush or bruise; "jam a toe" [syn: jam, crush]
    7: make ineffective; "Martin Luther King tried to break down
       racial discrimination" [syn: break down, crush]
    8: become injured, broken, or distorted by pressure; "The
       plastic bottle crushed against the wall"

Moby Thesaurus II by Grady Ward, 1.0:

314 Moby Thesaurus words for "crush":
   abase, abash, abolish, abrade, affection, afflict, aggrieve,
   anguish, annihilate, answer, answer conclusively, argue down, army,
   asphyxiate, atomize, batter, bear, bear down, beat, beat down,
   bellyful, beloved, beloved object, bend, blot out, bottle up, bray,
   break, break down, break into pieces, break to pieces, break up,
   brecciate, bring down, bring low, bring to tears, bring to terms,
   bruise, buck, bumper, butter, calf love, capacity, case, cataplasm,
   censor, charge, chew, choke off, clamp, clamp down on, clamping,
   clamping down, cluster, cohue, comminute, complement, compress,
   compression, confound, confute, conquer, contradict, contriturate,
   controvert, contuse, cork, cork up, crack down on, cram, crash,
   crease, crinkle, crowd, crumb, crumble, crumple, crunch,
   cut to pieces, cut up, damp down, darling, dash, dear, dear one,
   dearly beloved, debase, defeat, degrade, deluge, demean, demolish,
   demoralize, dental pulp, deny, depress, desolate, destroy,
   devastate, diffuse, diminish, disgrace, disintegrate, dismiss,
   disperse, dispose of, disrupt, draw tears, drove, drown, dump,
   dump on, embarrass, embitter, ensphere, express, extinguish, fell,
   fill, finish, fission, flatten, flock, flood, floor, flour,
   fondness, fragment, full house, full measure, gag, galaxy, grain,
   granulate, granulize, grate, grieve, grind, grind to powder, gust,
   gusto, heap, hold down, horde, host, humble, humiliate,
   infatuation, inundate, jam, jam up, jump on, keep down, keep under,
   kill, knock down, lading, legion, levigate, light of love, likes,
   liking, load, love, loved one, lower, macerate, maim,
   make mincemeat of, mangle, mash, mass, master, masticate, mill,
   mince, mob, mortify, mouthful, multitude, mush, muzzle, nip,
   nonplus, obliterate, oppress, overcome, overmaster, overpower,
   override, overthrow, overturn, overwhelm, panoply, paper pulp,
   parry, pash, passing fancy, passion, paste, pestle, pinch, pith,
   plaster, porridge, poultice, pound, pour water on, powder, press,
   pressure, prostrate, psych out, pudding, pulp, pulp lead, pulpify,
   pulpwood, pulverize, puppy love, push, put down, put to silence,
   quash, quell, quench, rabble, rag pulp, rebut, reduce,
   reduce to powder, reduce to silence, refute, relish, repress,
   ride down, rout, ruck, ruin, rumple, sauce, scatter, scrunch,
   set down, settle, shake, shame, shard, shatter, shiver, shred,
   shut down on, shut up, silence, sit down on, sit on, skinful,
   smash, smash all opposition, smash up, smother, snootful, sorrow,
   spate, splinter, sponge, squab, squash, squeeze, squeezing,
   squelch, squish, stanch, stifle, strangle, stultify, subdue,
   subjugate, subvert, suffocate, sulfate pulp, sulfite pulp,
   suppress, take down, taste, thrash, throng, throttle, tighten,
   tightening, torment, trample down, trample underfoot,
   tread underfoot, trip up, triturate, truelove, tweak, tyrannize,
   unbrace, undermine, undo, unman, unnerve, unstring, upset,
   vanquish, wad up, weakness, well-beloved, white lead, wood pulp,
   wreck, wrinkle