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Word

derail

verb
/ˌdəˈɹeɪ.əl/

Meanings

verb

To cause a train to leave the tracks; to come off the tracks.

Visual cue for derail
verb

To disrupt a plan, discussion, or process so that it stops or goes in the wrong direction.

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Definition

To derail is to cause a train to leave its tracks or to make a plan fail or go off course.

To derail means to make a train leave the railway tracks, often because of an accident. It is also commonly used in everyday English to mean interrupting a process or making a plan fail. In this figurative sense, a person, problem, or event can derail progress. It can be used both actively (someone derails something) and passively (something gets derailed).

Examples

  • A fallen tree could derail the train if it hits the tracks.
  • One angry comment can derail the whole conversation.
  • Budget cuts may derail the project before it starts.
  • Don’t let a minor mistake derail your progress.