Meaning of derail
Pronunciation: (dē-rāl'), [key]
- to cause (a train, streetcar, etc.) to run off the rails of a track.
- to cause to fail or become deflected from a purpose; reduce or delay the chances for success or development of: Being drafted into the army derailed his career for two years.
- (of a train, streetcar, etc.) to run off the rails of a track.
- to become derailed; go astray.
- a track device for derailing rolling stock in an emergency.
- derail (Thesaurus)