Tiara tiara tiara tiara tiara tiara tiare tiaror tijara τιάρα נזר Type of head ornament worn by women, usually royalty or members of the nobility, on state or formal occasions; usually in the form of a curved (less than semicircular) vertical band with a central peak, encrusted with diamonds or other gems. The term originally applied to the headdresses worn by the ancient Persians; it is now also applied to the triple crown of the pope. (AAT)