Source : Webster's Revised Unabridged Dictionary (1913)

Crush \Crush\ (kr?sh), v. t. [imp. & p. p. {Crushed} (kr?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.

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

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

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

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

            To crush the pillars which the pile sustain.
                                                  --Dryden.

            Truth, crushed to earth, shall rise again. --Bryant.

   4. To oppress or burden grievously.

            Thou shalt be only oppressed and crushed alway.
                                                  --Deut.
                                                  xxviii. 33.

   5. To overcome completely; to subdue totally.

            Speedily overtaking and crushing the rebels. --Sir.
                                                  W. Scott.

   {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.

Crush \Crush\ (kr?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.

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

            The wreck of matter, and the crush of worlds.
                                                  --Addison.

   2. Violent pressure, as of a crowd; a crowd which produced
      uncomfortable pressure; as, a crush at a peception.

   {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.

            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.

Source : WordNet®

crush
     n 1: leather that has had its grain pattern accentuated [syn: {crushed
          leather}]
     2: a dense crowd of people [syn: {jam}, {press}]
     3: temporary love of an adolescent [syn: {puppy love}, {calf
        love}, {infatuation}]
     4: the act of crushing [syn: {crunch}, {compaction}]

crush
     v 1: come down on or keep down by unjust use of one's authority;
          "The government oppresses political activists" [syn: {oppress},
           {suppress}]
     2: to compress with violence, out of natural shape or
        condition; "crush an aluminum can"; "squeeze a lemon"
        [syn: {squash}, {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}, {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: {smash}, {demolish}]
     6: crush or bruise; "jam a toe" [syn: {jam}]
     7: make ineffective; "Martin Luther King tried to break down
        racial discrimination" [syn: {break down}]
     8: become injured, broken, or distorted by pressure; "The
        plastic bottle crushed against the wall"