This is the 8512th most frequent German word.
kirsten
"Kirsten" is a German given name and does not have a specific definition in English; it is equivalent to the name "Kristen."
Here, 'Kirsten' is used as a proper noun, referring to a person's name.
Kirsten ist eine talentierte Musikerin.
Kirsten is a talented musician.
In this case, 'Kirsten' again functions as a proper noun, directly referring to an individual's name within a possessive context.
Ich habe die Geschichte von Kirsten gehört.
I heard the story of Kirsten.
Once more, 'Kirsten' is being utilized as a proper noun to denote the subject of the sentence.