This is the 9227th most frequent Polish word.
teresa
"Teresa" is a Polish female given name.
Here, 'Teresa' is a personal name being used as the subject of the sentence, indicating the person performing the action of visiting.
Teresa odwiedziła mnie wczoraj.
Teresa visited me yesterday.
In this instance, 'Teresy' is the genitive case of the name 'Teresa,' denoting possession or relationship to the message.
Wiadomość od Teresy była bardzo miła.
The message from Teresa was very nice.
Here, 'Teresa' again serves as a proper noun, functioning as the subject of the question, referring to the person whose preferences are being inquired about.