This is the 856th most frequent Swedish word.
jämtland
Jämtland: A historical province (landskap) in central Sweden.
The word 'Jämtland' is used here as a proper noun referring to a specific geographical region in Sweden.
Jämtland är en landskap i centrala Sverige.
Jämtland is a province in central Sweden.
The word 'Jämtland' is again a proper noun, representing a destination in the sentence.
Jag reser till Jämtland varje sommar för att njuta av naturen.
I travel to Jämtland every summer to enjoy the nature.
Here 'Jämtland' is used as a proper noun within a location context, indicating where the subject of the sentence is located.