ditch in WordNet English dictionary

1. throw away
   "Chuck these old notes"
   chuck  ditch 
   
2. crash or crash-land
   "ditch a car"; "ditch a plane"
   ditch 
   
3. cut a trench in, as for drainage
   "ditch the land to drain it"; "trench the fields"
   trench  ditch 
   
4. make an emergency landing on water
   ditch 
   
5. forsake
   "ditch a lover"
   ditch 
   
6. sever all ties with, usually unceremoniously or irresponsibly
   "The company dumped him after many years of service"; "She dumped her boyfriend when she fell in love with a rich man"
   dump  ditch 
   

1. a long narrow excavation in the earth
   ditch 
   
2. any small natural waterway
   ditch