This is the 984th most frequent Swedish word.
olyckan
"The accident."
Here, 'olyckan' is used as a noun meaning 'the accident', referring to an unfortunate event.
Olyckan inträffade på motorvägen.
The accident occurred on the highway.
In this sentence, 'olyckan' again refers to 'the accident', and it is used in a context describing developments following the event.
Efter olyckan var trafiken långsam.
After the accident, the traffic was slow.
Here, 'olyckan' is used in the same manner but in indirect reported speech, showing its usage in different types of expressions.