This is the 13284th most frequent Polish word.
opu
The word "opu" does not have a direct meaning in Polish; it may be a typo or abbreviation.
The word 'opu' is part of the verb 'opuścić,' which means 'to lower' or 'to leave.' Here it denotes the action of lowering the window.
Opuściłem okno, żeby wpuścić świeże powietrze.
I lowered the window to let in fresh air.
In this context, 'opu' is a part of the verb 'opuścić,' indicating the act of leaving a place, here referring to leaving a building.
Musieliśmy opuścić budynek z powodu alarmu.
We had to leave the building due to an alarm.
Here, 'opuścić' is used in metaphorical retrospection, focusing on leaving or losing something in a nostalgic sense.