一変
N1いっぺん
[ippen]
Meanings
1.NounNoun・suruTransitive
complete change; about-face
Examples
彼の態度が突然一変してしまった。
His attitude suddenly changed completely.
急に天気が一変して雨が降り始めた。
The weather suddenly changed and it started raining.
状況が一変したことに本当に驚いた。
I was really surprised that the situation changed completely.