American Dictionary

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Definition derail in American English

derail verb

verb
/dɪˈreɪl/
1

to make a train come off its rails

Synonyms and related words
1.1

if a train derails, it comes off its rails

Synonyms and related words
2

to prevent something from continuing in the way that it was planned

Example

Disagreements between the two parties have derailed peace talks.

Synonyms and related words
Definition derail in American English