kōlˈni(ˌ)drā, kȯl-, -_drē, -_drə, ˌ ̷ ̷_niˈdrā noun
Usage: usually capitalized K&N
Etymology: Aramaic kol nidhrē all the vows; from the opening phrase of the prayer
1. : the recital of an Aramaic prayer in the synagogue on the eve of Yom Kippur asking for annulment of vows to God and forgiveness of transgressions
2. : a traditional melody to which the words of Kol Nidre are sung or chanted