Yom Kippur is the Jewish Day of Atonement, a solemn fast observed by introspection, prayer, and communal atonement. The term combines Hebrew words for “day” (Yom) and “atonement” (Kippur), signaling a ninth-month holiday mood of reflection. It is traditionally the holiest day in the Jewish calendar and is marked by fasting from sundown to nightfall the next day.
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