ditch

Concise Oxford English Dictionary © 2008 Oxford University Press:
ditch/dɪtʃ/

▶noun a narrow channel dug to hold or carry water. ▶verb

• 1 provide with or dig a ditch.

• 2 informal get rid of; give up.

  ■ N. Amer. play truant from (school).

• 3 (with reference to an aircraft) make or cause to make a forced landing on water.

– derivatives
ditcher noun,
ditching noun.

– origin OE dīc, of Gmc origin; rel. to dyke1.