This is the 424th most frequent Azerbaijani word.
üçüncü
"Üçüncü" means "third" in English.
Here, 'üçüncü' functions as an ordinal number describing the position of the book.
Bu mənim üçüncü kitabımdır.
This is my third book.
In this sentence, 'üçüncü' specifies the frequency or order of the meeting.
Onlar üçüncü dəfə görüşdülər.
They met for the third time.
Here, 'üçüncü' refers to the position of an option in a sequence.