How to Use "derailment" with Example Sentences

1. The cause of the derailment was not immediatelyknown .
2. Fragile public finances proved vulnerable to derailment when the crisis finally hit and they did derail .
3. There were even rumours that the security agencies staged the explosion to cover up a derailment caused by poor maintenance .
4. Occupant of railway train or railway vehicle injured in derailment without antecedent collision .
5. Police investigating the train derailment have not ruled out sabotage .