This is the 6439th most frequent Polish word.
charzewskiego
"Charzewskiego" is not a standalone word but a possessive or locative form of a surname, likely meaning "of Charzewski" or related to someone/something named Charzewski.
The word 'Charzewskiego' in this sentence is used in the genitive case to denote possession, indicating whose house it is.
Wczoraj odwiedziłem dom Charzewskiego.
Yesterday, I visited Charzewski's house.
Here, 'Charzewskiego' refers to the name of a street, indicating a locational context.
Znajdź ulicę Charzewskiego na mapie.
Find Charzewski Street on the map.
In this example, 'Charzewski' (not in genitive form) is the surname used nominatively to refer to a person being discussed.