前夜祭 ぜんやさい event held the night before another event #21,273 Meanings noun event held the night before another event; eve (of a festival) (e.g. Christmas Eve) Its kanji 前 ゼン · まえ、-まえ in front, before 夜 ヤ · よ、よる night, evening 祭 サイ · まつ.る、まつ.り、まつり ritual, offer prayers, celebrate, deify, enshrine, worship