1.a long narrow excavation in the earth
2.any small natural waterway
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
4.make an emergency landing on water
5.crash or crash-land;
ditch a car
6.cut a trench in, as for drainage;
ditch the land to drain it