This is the 8531st most frequent Swedish word.
besöks
"Besöks" is the possessive form meaning "visitor's" or relates to "visiting."
In this sentence, the word 'besöks' is used as the passive form of the verb 'besöka,' indicating an action is performed on the subject (the museum) by someone else.
Museet besöks av många turister varje år.
The museum is visited by many tourists every year.
Here, 'besöks' again is the passive voice of 'besöka,' used to indicate that the school is the recipient of visits by others.
Under öppet hus besöks skolan av föräldrar och elever.
During open house, the school is visited by parents and students.
In this context, 'besöks' shows that the library is the destination or object of visiting actions carried out by unspecified agents.