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Derail (Verb)

Run off or leave the rails; "the train derailed because a cow was standing on the tracks".

Verbs of walking, flying, swimming.

The train derailed on a curve due to excessive speed, injuring several passengers.
Poor maintenance caused the old tram to derail in the city center.
A stray dog's presence on the tracks nearly caused the freight train to derail.
Heavy rainfall triggered a landslide that derailed the express train.
Due to mechanical failure, the bullet train derailed while traveling at full speed.

Cause to run off the tracks; "they had planned to derail the trains that carried atomic waste".

Verbs of walking, flying, swimming.

Vandals tried to derail a freight train carrying hazardous chemicals by placing rocks on the tracks.
Terrorists threatened to derail the entire rail system with strategically placed bombs.
Protesters were accused of attempting to derail the cargo train as it carried nuclear materials through the town.
Engineers struggled to determine what could have caused the high-speed train to derail and crash in the remote forest.
A disgruntled employee was found guilty of conspiracy to derail a commuter train during rush hour.