Noun
The act of going off, or the state of being off, the rails of a railroad.
Source: Webster's dictionaryA derailment Wednesday night on the Saint-Jérôme line halted service for several hours, and delays continued even after service resumed. Source: Internet
In April 2014, a train derailment killed 63 people. citation Media Katanga province is served by television broadcasts. Source: Internet
Email “Three people dead and six injured in train derailment in Aberdeenshire”. Source: Internet
Emergency service workers at the scene of the train derailment in Scotland. Source: Internet
I guess jovial train derailment would be more of an Ireland thing? Source: Internet
I was wondering if this derailment was just caused by flooding, but it seems there was a landslip caused by the rain. Source: Internet