No. 7,343 in Polish
kasią
"Kasią" is not a standalone Polish word but may be a form of the name "Kasia," which is a diminutive of Katarzyna (Catherine).
In a sentence
Spotkałem się wczoraj z Kasią w parku.
I met with Kasia yesterday in the park.
In this sentence, 'Kasią' is used in the instrumental case form of the proper noun 'Kasia', a female name, indicating accompaniment.
Rozmawiam przez telefon z Kasią.
I am talking on the phone with Kasia.
Here, 'Kasią' again appears in the instrumental case, used when implying communication or interaction with another person.
Idę na spacer z Kasią.
I am going for a walk with Kasia.
In this context, 'Kasią' is utilized in the instrumental case to denote the person accompanying the speaker during the activity.
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