This is the 101st most frequent Azerbaijani word.
hansı
"Which" or "what" (used to ask about a specific one or type).
The word 'hansı' is used here as an interrogative adjective asking for specification ('which') regarding the noun 'müəllimə' ('teacher').
Bu kitab hansı müəllimə aiddir?
To which teacher does this book belong?
In this sentence, 'hansı' functions as an interrogative adjective specifying the noun 'çiçəkləri' ('flowers'). It introduces a dependent clause due to the uncertainty it expresses.
Hansı çiçəkləri götürəcəyimizi bilmirdim.
I did not know which flowers we should take.
Here, 'hansı' is again used as an interrogative adjective partnered with the noun 'filmi' ('movie') to ask for specification from among options.