Hallos meaning : A traditional bread eaten by Ashkenazi Jews, usually braided for the Sabbath and round for Yom Tov. The commandment to separate a portion of bread or bread dough for the cohanim (Numbers 15:17–21); in contemporary practice, the portion is burned until inedible. The portion separated in fulfillment of the above. The cry "hallo!" A shout of exultation.