wrack in WordNet English dictionary

1. smash or break forcefully
   "The kid busted up the car"
   bust up  wreck  wrack 
   

1. the destruction or collapse of something
   "wrack and ruin"
   wrack  rack 
   
2. growth of marine vegetation especially of the large forms such as rockweeds and kelp
   sea wrack  wrack 
   
3. dried seaweed especially that cast ashore
   wrack