Definition from macmillandictionary.com
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a fatal accident on the motorway between Paris and Lyons
He was killed in a car accident.
The accident was caused by ice on the road.
Seven men were killed in a serious mining accident yesterday.
a riding/climbing/hunting accident
Don’t make such a fuss – it was an accident.
To be honest, my second pregnancy was an accident.
Children can have an accident at night sometimes.