ditch

American Heritage® Dictionary of the English Language, Fourth Edition

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

Century Dictionary and Cyclopedia

1. n. A trench made by digging; particularly, a trench for draining wet land, or for making a barrier to guard inclosures, or for preventing an enemy from approaching a town or a fortress. In the latter sense it is also called a foss or moat, and is dug round the rampart or wall between the scarp and the counterscarp. See cut under castle.
2. n. Any narrow open passage for water on the surface of the ground.
3. To dig or make a ditch or ditches: as, ditching and delving; hedging and ditching.
4. To dig a ditch or ditches in; drain by a ditch: as, to ditch moist land.
5. To surround with a ditch.
6. To throw or run into or as if into a ditch: as, to ditch a railway-train.

Wiktionary

1. n. A trench; a long, shallow indentation, as for irrigation or drainage.
2. v. To discard or abandon.
3. v. To deliberately crash-land an airplane on the sea.
4. v. To deliberately not attend classes; to play hookey.
5. v. To dig ditches.
6. v. To dig ditches around.

GNU Webster's 1913

1. n. A trench made in the earth by digging, particularly a trench for draining wet land, for guarding or fencing inclosures, or for preventing an approach to a town or fortress. In the latter sense, it is called also a moat or a fosse.
2. n. Any long, narrow receptacle for water on the surface of the earth.
3. v. To dig a ditch or ditches in; to drain by a ditch or ditches.
4. v. To surround with a ditch.
5. v. To throw into a ditch.
6. v. To dig a ditch or ditches.

WordNet 3.0

1. n. any small natural waterway
2. v. cut a trench in, as for drainage
3. v. forsake.
4. v. sever all ties with, usually unceremoniously or irresponsibly
5. v. make an emergency landing on water
6. n. a long narrow excavation in the earth
7. v. crash or crash-land
8. v. throw away