This is the 2502nd most frequent Polish word.
krosno
Loom.
The word "krosno" here is used as a proper noun referring to a city in Poland.
Krosno jest pięknym miastem w południowej Polsce.
Krosno is a beautiful city in southern Poland.
In this sentence, "krosno" refers to a tool specifically a loom used in the manufacturing of fabrics.
Tkacz ustawia swoje krosno, aby rozpocząć tworzenie tkaniny.
The weaver is setting up their loom to start fabric creation.
The word "krosno" is again used to signify the loom as a workshop apparatus for weaving.