Usage: usually capitalized F&U&B
: an ancient 7-day agricultural feast marked by the offering of new grain to the Lord which began on the 15th day of the 1st month, the day after the 1st day of the Passover, and finally became one continuous festival with the Passover
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Feast of Unleavened Bread,
= Passover. (Cf. ↑Passover)
Useful english dictionary. 2012.