Yom Kippur /ˌjoʊmkɪˈpuɚ/ noun Learner's definition of YOM KIPPUR
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: a Jewish holiday observed in September or October during which Jewish people do not eat or drink anything and pray to ask for forgiveness for mistakes made during the year赎罪日（犹太教节日，在九月或十月，犹太人在这一天禁饮食，并为自己在过去一年所犯的过错忏悔祈祷）