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HYPHEN
WORDNET DICTIONARY
OXFORD DICTIONARY
ROGET THESAURUS

WORDNET DICTIONARY

Verb derail has 2 senses

• derail(v = verb.motion) Array - cause to run off the tracks; "they had planned to derail the trains that carried atomic waste"
is one way to counteract, countermine, sabotage, subvert, undermine, weaken
Derived form noun derailment₁
Sample sentences:
Somebody ----s something
Something ----s something

• derail(v = verb.motion) jump - run off or leave the rails; "the train derailed because a cow was standing on the tracks"
is one way to go, locomote, move, travel
Derived form noun derailment₁
Sample sentence:
Something ----s

OXFORD DICTIONARY

ROGET THESAURUS

derail

Cessation

VB cease, discontinue, desist, stay, halt, break off, leave off, hold, stop, pull up, stop short, stick, hang fire, halt, pause, rest, burn out, blow out, melt down, have done with, give over, surcease, shut up shop, give up, hold one's hand, stay one's hand, rest on one's oars repose on one's laurels, come to a stand, come to a standstill, come to a deadlock, come to a full stop, arrive, go out, die away, wear away, wear off, pass away, be at an end, disintegrate, self-destruct, intromit, interrupt, suspend, interpel, intermit, remit, put an end to, put a stop to, put a period to, derail, turn off, switch off, power down, deactivate, disconnect, bring to a stand, bring to a standstill, stop, cut short, arrest, stem the tide, stem the torrent, pull the check-string, pull the plug on, Int, hold!, stop!, enough!, avast!, have done!, a truce to!, soft!, leave off!, tenez!.

For further exploring for "derail" in Webster Dictionary Online