Verb
1. forsake;
"ditch a lover"2. throw away;
"Chuck these old notes"3. 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"4. make an emergency landing on water
5. crash or crash-land;
"ditch a car""ditch a plane"6. cut a trench in, as for drainage;
"ditch the land to drain it""trench the fields"