This is the 17319th most frequent Polish word.
zamordowanej
"Zamordowanej" means "of the murdered" or "murdered (feminine form, genitive case)."
In this sentence, 'zamordowanej' describes 'kobiety' (woman) as being murdered, functioning as an adjective in the genitive case.
Policja wciąż bada sprawę zamordowanej kobiety.
The police are still investigating the case of the murdered woman.
Here, 'zamordowanej' is an adjective modifying 'dziewczynie' (girl) in the locative case.
Opowieści o zamordowanej dziewczynie poruszyły całą społeczność.
The stories about the murdered girl moved the entire community.
In this sentence, 'zamordowanej' relates to 'rodzina' (family) and is in the genitive case to indicate possession or relation.