derail
[ dee-reyl ]
/ diˈreɪl /
verb (used with object)
to cause (a train, streetcar, etc.) to run off the rails of a track.
to cause to fail or become deflected from a purpose; reduce or delay the chances for success or development of: Being drafted into the army derailed his career for two years.
verb (used without object)
(of a train, streetcar, etc.) to run off the rails of a track.
to become derailed; go astray.
noun
a track device for derailing rolling stock in an emergency.
Nearby words
deputy sheriff, der., deracinate, deradicalize, deraign, derail, derailleur, derailment, derain, derain, andré, derange
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for derail
British Dictionary definitions for derail
derail
/ (dɪˈreɪl) /
verb
to go or cause to go off the rails, as a train, tram, etc
noun
Also called: derailer mainly US a device designed to make rolling stock or locomotives leave the rails to avoid a collision or accident
Derived Formsderailment, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for derail
derail
1850, in both transitive and intransitive senses, from French dérailler "to go off the rails," from de- (see de-) + railler (see rail (n.1)). In general use first in U.S. Related: Derailed; derailing.
Online Etymology Dictionary, © 2010 Douglas Harper