ditch

nouns

a long narrow excavation in the earth
is a type of (narrower)
a hole in the ground made by excavating
any small natural waterway
is a type of (narrower)
a navigable body of water

verbs

forsake
"ditch a lover"
is a type of (narrower)
leave someone who needs or counts on you; leave in the lurch
"The mother deserted her children"
throw away
"Chuck these old notes"
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"
make an emergency landing on water
domain category
travel via aircraft
"air travel involves too much waiting in airports"; "if you've time to spare go by air"
is a type of (narrower)
make an emergency landing
crash or crash-land
"ditch a car"; "ditch a plane"
is a type of (narrower)
cause to crash
"The terrorists crashed the plane into the palace"; "Mother crashed the motorbike into the lamppost"
cut a trench in, as for drainage
"ditch the land to drain it"; "trench the fields"