This is the 847th most frequent Persian word.
جوانی
Youth.
This usage highlights 'جوانی' as a general stage in life.
جوانی یک دوره طلایی از زندگی است.
Youth is a golden period of life.
Here, 'جوانی' refers to the period of life during which one is youthful.
در جوانی باید به دنبال یادگیری مهارتهای جدید باشید.
In youth, one should seek to learn new skills.
In this sentence, 'جوانی' is used to denote the vigor and capabilities associated with being young.