This is the 9043rd most frequent Swedish word.
dödsolyckan
A fatal accident.
The word "dödsolyckan" is used here as the subject of the sentence referring to a specific tragic event involving a fatality.
Dödsolyckan inträffade på motorvägen igår kväll.
The fatal accident occurred on the highway last night.
In this sentence, "dödsolyckan" is used as part of a prepositional phrase indicating the topic that is being reported.
Rapporter om dödsolyckan spreds snabbt i nyheterna.
Reports of the fatal accident quickly spread in the news.
Here, "dödsolyckan" is an object in the sentence describing what the authorities are investigating.