n. A long narrow trench or furrow dug in the ground, as for irrigation, drainage, or a boundary line.
v.tr.1. To dig or make a long narrow trench or furrow in.
2. To surround with a long narrow trench or furrow.
3. a. To drive (a vehicle) into a long narrow trench, as one beside a road.
b. To derail (a train).
4. Slang a. To get rid of; discard: ditched the old yard furniture.
b. To get away from (a person, especially a companion).
c. To discontinue use of or association with: ditch the job at the hamburger stand.
d. To skip (class or school).
5. To crash-land (an aircraft) on water.