This is the 13177th most frequent Polish word.
ogłoszenie
Announcement.
In this sentence, 'ogłoszenie' means 'advertisement' and is used to refer to published information aimed at catching people's attention for specific offerings or sales.
Wczoraj widziałem ogłoszenie o sprzedaży samochodu.
Yesterday, I saw an advertisement for selling a car.
In this sentence, 'ogłoszenie' means 'announcement' and refers to the act of formally communicating or making known information.
Ogłoszenie wyników egzaminów odbędzie się w piątek.
The announcement of exam results will take place on Friday.
In this sentence, 'ogłoszenie' again means 'advertisement' in the context of an informational publication, here specifically about a job opportunity.