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ram's horn blown on Rosh Hashanah and Yom Kippur, 1833, from Hebrew shophar "ram's horn," related to Arabic sawafiru "ram's horns," Akkadian shapparu "wild goat."
a ritual musical instrument, made from the horn of a ram or other animal, used on important Jewish public and religious occasions. In biblical times the shofar sounded the Sabbath, announced the New Moon, and proclaimed the anointing of a new king. This latter custom has been preserved in modern Israel at the swearing in of the president of the state