the day or evening before an event, especially a religious festival or holiday （尤指宗教节假日的）前夜，前夕 Christmas Eve (= 24 December) 圣诞前夕（12 月 24 日） a New Year’s Eve party (= on 31 December) 除夕晚会 on the eve of the election 在选举前夕 a special election eve show 选举前夕的一场特别表演
Oxford Collocations Dictionaryadjective- Christmas
- Midsummer’s
- New Year’s
- …
- on the eve of
- (old use or literary)
evening 傍晚；黄昏 one midsummer’s eve 一个仲夏夜
Word Originlate Middle English (in the sense ‘close of day’): short form of even ‘evening’.