This is the 3529th most frequent Polish word.
adrian
In Polish, "Adrian" is a male given name.
Here, 'Adrian' is used as a proper noun and subject of the sentence, referring to a specific person.
Adrian jest moim przyjacielem.
Adrian is my friend.
In this sentence, 'Adriana' is the accusative form of the proper noun Adrian, denoting a male person as the direct object of the action.
Spotkaliśmy Adriana w parku.
We met Adrian in the park.
Here, 'Adriana' is used in genitive singular case indicating possession or association, showing that the homework is related to him.