This is the 6095th most frequent Polish word.
andriejewą
"Andriejewą" is the instrumental singular form of "Andriejewa," a Polish surname (feminine).
Here, 'Andriejewą' is used in the instrumental case as the object of the verb 'spotkałem się', indicating association with a person.
Spotkałem się z Andriejewą na spotkaniu.
I met with Andriejewa at the meeting.
In this context, 'Andriejewą' appears in the instrumental case after the preposition 'o', showing the subject of discussion.
Porozmawiałem o Andriejewie z moimi znajomymi.
I talked about Andriejewa with my friends.
Here, 'Andriejewą' is in the genitive case, indicating possession or relationship.