This is the 14435th most frequent Turkish word.
orucun
"Orucun" means "your fast" in English, referring to the act of fasting.
Here, 'orucun' means 'your fasting' and is used as the second-person singular possessive form of the word 'oruç' meaning 'fasting'.
Bugün orucun çok zor olduğunu düşünüyorum.
I think today's fasting is very difficult.
In this sentence, 'orucun' translates to 'the fasting's' and is used to denote the possessive form conveying benefits relating to fasting.
Orucun faydalarını anlatan bir kitap okudum.
I read a book explaining the benefits of fasting.
The usage of 'orucun' here is possessive, signifying the start time relevant to fasting.