Meaning & use

derail

verb·Academic

To cause a train to run off its tracks, or to disrupt a plan or process.

See it in a sentence

Heavy flooding caused the freight train to derail near the bridge.

A sudden scandal threatened to derail the senator's reelection campaign.

A note on using this word

The figurative sense, meaning to ruin progress or plans, is now more common than the literal railway meaning.

Words with a similar meaning

disruptsidetrack

Choose a synonym to suit the sentence. Meanings can overlap without being identical.

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