This is the 8278th most frequent Polish word.
psni
It seems there is a typo in the word "psni." If you meant "psni" in Polish, it is not a recognized word. Perhaps you intended "psa" (dog) or "pani" (lady). Could you clarify?
Here, 'psni' is used as a noun referring to songs or melodies.
Słyszałem piękne psni dzisiaj rano.
I heard beautiful songs this morning.
In this sentence, 'psnię' is used as a noun representing a specific song or tune.
Czy umiesz zaśpiewać psnię, które teraz jest popularne?
Can you sing the song that is currently popular?
Here, 'psni' refers to musical compositions in the plural form.