This is the 2104th most frequent Swedish word.
estland
Estland: Estonia.
Here 'Estland' is used as a proper noun referring to the country Estonia.
Jag har alltid velat resa till Estland.
I have always wanted to travel to Estonia.
In this case, 'Estland' is a subject in the sentence, indicating the entity being described.
Estland är en del av EU sedan 2004.
Estonia has been a part of the EU since 2004.
'Estland' here indicates the origin of the person's nationality or place of residence.