pies

pies

Dog.

Here, "pies" is used as the subject of the sentence, meaning 'dog', which is a noun referring to the animal.

Pies biega po ogrodzie.

The dog is running in the garden.

In this sentence, "psa" is the accusative form of "pies", used to indicate the direct object.

Kiedyś miałem psa, ale teraz go już nie mam.

I used to have a dog, but I don't have it anymore.

Here, "pies" is used in its nominative case to describe the subject of the sentence.

Na ulicy leżał bezpański pies.

A stray dog was lying on the street.