This is the 7278th most frequent Polish word.
j贸zefa
"Józefa" is the Polish feminine form of the name "Joseph."
Here, "Józefa" is a genitive case used to show possession (the house belonging to Józef).
Dom Józefa jest na końcu ulicy.
Józef's house is at the end of the street.
In this instance, "Józefa" is in the accusative case, indicating that Józef is the direct object of the sentence.
Spotkałem Józefa podczas wczorajszego spaceru.
I met Józef during yesterday's walk.
"Józefowi" demonstrates the dative case, where Józef is the indirect object receiving help.