Kipa is a Hebrew term that refers to a small, round or dome-shaped head-covering worn by Jewish men, also known as a yarmulke or skullcap. Synonyms for Kipa include zucchetto, taqiyah, kufi, fez, and keffiyeh. Zucchetto is a skullcap worn by Catholic clergy, typically made of silk or wool. Taqiyah is a Muslim cap often worn for religious purposes. Kufi is a cap worn by Muslim men, typically made of cotton or wool. Fez is a brimless, cone-shaped cap originating in Morocco. Keffiyeh is a traditional Arab headdress made of cotton or silk. These synonyms, although different from Kipa, are also distinctive head-coverings worn for religious or cultural reasons.