This is the 887th most frequent Polish word.
rzeszowie
"Rzeszowie" is the locative case of "Rzeszów," meaning "in Rzeszów," a city in Poland.
In this sentence, 'Rzeszowie' is used as a locative form (in Rzeszów) demonstrating location.
Mieszkam w Rzeszowie, które jest pięknym miastem.
I live in Rzeszów, which is a beautiful city.
This instance of 'Rzeszowie' mentions personal experience and preference related to a specific city.
Byłem już wiele razy w Rzeszowie i zawsze mi się podoba.
I have been to Rzeszów many times, and I always like it.
Here, 'Rzeszowie' is applied in context to specify the place where an event will occur.