This is the 5268th most frequent Swedish word.
east
The Swedish word "öst" means "east" in English.
Here 'öster' is used as a location indicating the eastern direction.
Solen går upp i öster.
The sun rises in the east.
'öster om' is used as a prepositional phrase specifying the city's location relative to the river.
Staden ligger öster om floden.
The city is located east of the river.
In this sentence, 'österut' is used as an adverb describing the direction of the travel towards the east.