This is the 7266th most frequent Polish word.
jurkiewicz
"Jurkiewicz" is a Polish surname and does not have a specific meaning beyond being a family name.
Here, 'Jurkiewicz' is used as a proper noun to refer to a specific person, indicating titular usage.
Pan Jurkiewicz jest nauczycielem matematyki.
Mr. Jurkiewicz is a mathematics teacher.
In this case, 'Jurkiewiczów' is the plural genitive form used to describe a family collectively.
Rodzina Jurkiewiczów mieszka w Warszawie.
The Jurkiewicz family lives in Warsaw.
Here, 'Jurkiewicza' is used in the accusative case to denote the object of the action in the sentence.