This is the 7694th most frequent Polish word.
luiseville
It seems "luiseville" is not a Polish word. It might be a misspelling or not of Polish origin.
Here, 'Luiseville' is used as a proper noun, specifically the name of a city.
Luiseville to piękne miasto w Kentucky.
Luiseville is a beautiful city in Kentucky.
In this case, 'Luiseville' again functions as a proper noun representing the city that was visited.
Podczas naszej wycieczki odwiedziliśmy Luiseville.
During our trip, we visited Luiseville.
Here, 'Luiseville' is used in a question, still as a proper noun referring to the city.