This is the 7932nd most frequent Swedish word.
visby
Visby is the name of a medieval town on the Swedish island of Gotland.
Here, 'Visby' is used as a proper noun to refer to a specific place, the name of the city.
Visby är en stad på Gotland.
Visby is a city on Gotland.
In this sentence, 'Visby' continues to act as a proper noun denoting the city to which a past event pertains.
Jag besökte Visby förra sommaren.
I visited Visby last summer.
'Visby' is used as the context for discussing the condition of the weather, specifying the location.