This is the 5037th most frequent German word.
annie
The word "Annie" is not a German word but rather a proper name commonly used in English.
The word 'Annie' is used here as a proper noun, referring to the name of an individual.
Annie mag es, am frühen Morgen spazieren zu gehen.
Annie enjoys walking early in the morning.
The word 'Annies' is used to denote possession in German, indicating that the book belongs to Annie.
Das ist Annies Buch auf dem Tisch.
That is Annie's book on the table.
Here, 'Annie' again represents a proper noun referring to an individual who is the subject of the sentence.