This is the 17411th most frequent Turkish word.
üşüncü
The word "üşüncü" does not exist in standard Turkish; it might be a misspelling or regional term. Can you clarify?
The word 'üçüncü' is used here as an ordinal number to specify the floor.
Evimizin üçüncü katında oturuyoruz.
We live on the third floor of our house.
In this sentence, 'üçüncü' describes the sequence of participation.
Bu yıl üçüncü kez yarışmaya katılacağım.
I will join the competition for the third time this year.
Here, 'üçüncü' is used to specify the order of episodes in a series.