This is the 16241st most frequent Polish word.
urlopie
"Urlopie" means "on vacation" or "on leave" in English.
In this usage, 'urlopie' is preceded by 'po' (after), showing it as the concluded period preceding another event.
Po urlopie wracamy do pracy.
After the vacation, we return to work.
In this sentence, 'urlopu' (vacation/holiday) refers to a period of leave from work, used for personal activities such as travel.
Podczas urlopu zwiedziłem całą Polskę.
During my vacation, I visited all of Poland.
Here, 'urlopie' (vacation/holiday) again denotes a leave period; the preposition 'na' (on) is used to indicate the person is currently on leave.