This is the 6460th most frequent Polish word.
chojnowa
"Chojnowa" does not appear to be a standard Polish word. It might be a proper noun or misspelling.
acting as an attributive adjective related to a place name
Chojnowa wioska jest malownicza.
The Chojnowa village is picturesque.
species declension variant in accusative for the feminine noun referring to a place name
Odwiedziłem Chojnową w zeszły weekend.
I visited Chojnów last weekend.
genitive case variant to denote possession or origination from a place name