This is the 736th most frequent Greek word.
πού
The Greek word "πού" means "where."
The word "πού" is used as an interrogative adverb here, asking for the location of the subject's action.
Πού πήγες χθες το βράδυ;
Where did you go last night?
In this sentence, "πού" introduces a subordinate clause as a relative adverb, specifying the location being referred to.
Δεν ξέρω πού βρίσκεται το κλειδί.
I don't know where the key is.
Here, "πού" functions as an interrogative adverb within a clause that serves as the object of the verb "αναρωτιούνται", expressing a question in indirect speech.