This is the 4822nd most frequent Polish word.
okno
Window.
Referring to the physical window of a building.
Spójrz przez okno i powiedz mi, co widzisz.
Look through the window and tell me what you see.
Referring to a dialog window in computer software.
Program rozpoczął się, ale okno dialogowe się nie otworzyło.
The program started, but the dialog window did not open.
Referring to a figurative window in time.