This is the 5307th most frequent Swedish word.
elena
"Elena" is not a Swedish word; it is a given name.
In this sentence, 'Elena' is used as a proper noun, a person's name.
Elena är en mycket begåvad musiker.
Elena is a very talented musician.
Here, 'Elena' is again a proper noun representing the subject of the sentence.
Jag hörde att Elena vann priset.
I heard that Elena won the award.
In this case, 'Elena' is used as a direct object in the sentence.