Answer
Ornament of worshippers is the meaning of "Zayn al-Abidin." This Arabic name is a title given to the fourth Shia Imam, Ali ibn Husayn, who lived from 658 to 713 CE. He was known for his piety, knowledge, and devotion to God. The name "Zayn al-Abidin" reflects his reputation as a role model for worshippers, embodying the qualities of a true believer.