前夜 ぜんや
zen'ya

Noun
Adverb

1. last night; the previous night

まるで革命 かくめい前夜 ぜんやのような さわぎだった。
marude kakumē zen'yano yōna sawagidatta.
It looked as if we were on the eve of a revolution.
Noun
Adverb

2. night before (Christmas, etc.); eve (of festival, major event, etc.)