Source : Webster's Revised Unabridged Dictionary (1913)

Wrack \Wrack\, v. t.
   To wreck. [Obs.] --Dryden.

Wrack \Wrack\, n.
   A thin, flying cloud; a rack.

Wrack \Wrack\, v. t.
   To rack; to torment. [R.]

Wrack \Wrack\, n. [OE. wrak wreck. See {Wreck}.]
   1. Wreck; ruin; destruction. [Obs.] --Chaucer. ``A world
      devote to universal wrack.'' --Milton.

Source : WordNet®

wrack
     n 1: dried seaweed especially that cast ashore
     2: the destruction or collapse of something; "wrack and ruin"
        [syn: {rack}]
     3: growth of marine vegetation especially of the large forms
        such as rockweeds and kelp [syn: {sea wrack}]
     v : smash or break forcefully; "The kid busted up the car" [syn:
          {bust up}, {wreck}]