This is the 6099th most frequent Polish word.
anety
"Anety" is the plural form of the name "Aneta" in Polish, referring to multiple people named Aneta.
In this sentence, 'Anetą' is the instrumental form of the proper noun 'Aneta', used to indicate action performed with the person Aneta.
Spotkałem się z Anetą wczoraj w parku.
I met Aneta yesterday in the park.
Here, 'Anety' is the genitive form of the proper noun 'Aneta', indicating possession.
Czy książki Anety są na stole?
Are Aneta's books on the table?
In this case, 'Anety' is the genitive form used with a verb requiring this case, indicating absence.