This is the 4174th most frequent Polish word.
chrześcijan
"Chrześcijan" means "Christian" in English.
Here, 'chrześcijan' is used in the genitive plural form to indicate 'Christians' as a group being mentioned in a descriptive context.
Chrześcijan jest wielu w Polsce, ponieważ to kraj o tradycji chrześcijańskiej.
There are many Christians in Poland because it is a country with a Christian tradition.
In this context, 'chrześcijan' is utilized in the accusative singular form to refer to an individual Christian.
W naszej parafii mieszka chrześcijan z Niemiec.
In our parish, there lives a Christian from Germany.
Here, 'chrześcijan' is in the genitive plural form to describe the possession or association with the lives of Christians.