This is the 2087th most frequent Arabic word.
تجدد
Renewal or rejuvenation.
The word "تجدّد" here means "renewed" and refers to the revival or rejuvenation of hope.
تجدّد الأمل في نفوس الناس بعد الأخبار الجيدة.
Hope was renewed in people's hearts after the good news.
The word "يتجدد" conveys the notion of recurrence or repetition for an event such as a meeting.
يتجدد الاجتماع الشهري في الأسبوع القادم.
The monthly meeting will take place again next week.
Here, "تجدد" refers to the natural process of rejuvenation and blooming characteristic of spring.