This is the 2849th most frequent Polish word.
kradzież
"Theft" or "robbery" in English.
Here, 'kradzież' is used as a noun referring to the act of stealing, specifically a car theft.
Kradzież samochodu to poważne przestępstwo.
Car theft is a serious crime.
In this sentence, 'kradzież' refers to the abstract concept of theft, implying an investigation following such an act.
Policja prowadzi śledztwo w sprawie kradzieży pieniędzy.
The police are investigating the case of money theft.
Here, 'kradzież' is again used as a noun, this time pointing to the specific act of stealing an artwork.