Definition of derail
- security problems derailed the tour
- divorce … can seriously derail an employee
- —Joanne Gordon
The train derailed in heavy snow.
The train was derailed by heavy snow.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'derail.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 1850See Words from the same year
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