/ ʃəˈvuːəs; ˌʃɑːvʊˈɒt; NAmE ʃəˈvuːoʊt; -oʊθ/ (also ˌFeast of ˈWeeks , Pente·cost ) noun
[ U ] a Jewish festival that takes place 50 days after the second day of Passover
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WORD ORIGIN
from Hebrew šāḇū'ōṯ weeks, with reference to the weeks between Passover and Pentecost.