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intr. & tr.v. de·railed, de·rail·ing, de·rails
1. To run or cause to run off the rails.
2. To come or bring to a sudden halt: a campaign derailed by lack of funds; a policy that derailed under the new administration.
[French dérailler : dé-, off (from Old French de-; see de-) + rail, rail (from English; see rail1).]
(Railways) to go or cause to go off the rails, as a train, tram, etc
(Railways) chiefly Also called: derailer US a device designed to make rolling stock or locomotives leave the rails to avoid a collision or accident
1. to cause (a train, streetcar, etc.) to run off the rails of a track.
2. to cause to be deflected from a purpose or direction, permanently or temporarily: A skiing accident derailed her dancing career.v.i.
3. to run off the rails of a track.
4. to become derailed; go astray.
Past participle: derailed
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|Verb||1.||derail - cause to run off the tracks; "they had planned to derail the trains that carried atomic waste"|
|2.||derail - run off or leave the rails; "the train derailed because a cow was standing on the tracks"|
go, locomote, move, travel - change location; move, travel, or proceed, also metaphorically; "How fast does your new car go?"; "We travelled from Rome to Naples by bus"; "The policemen went from door to door looking for the suspect"; "The soldiers moved towards the city in an attempt to take it before night fell"; "news travelled fast"